A Wolf, a Sheep and a Cabbage - Your Daily Carpool Adventure

Remember the childhood riddle about a traveling salesman that needs to visit all the towns on a map within a minimal amount of time? Or a funny one about a wolf, a sheep and a cabbage that have to safely cross the river, one at a time, in a boat? One needs to strategize the boat trips given that it is not safe for the sheep to stay alone with the wolf on the shore or for the cabbage to be left with the sheep.


Image by Celine, distributed under the Creative Commons license

When we were back in school, we never imagined how applicable such training would become once we had kids. Just replace a wolf with your teenage daughter, a sheep with your toddler son, and a cabbage with your new baby, and everything starts to make sense. Remember that you can leave the baby at home with the teen but not the toddler, that your toddler has a playdate and both need boosters, that one should nap while two others are playing and the teen has a dance class, then one toddler has a swim lesson while you need to drop off his playmate and pick up your oldest one. And don't forget this doctor's appointment with the youngest one. Too easy? Then reorganize everything on-the-fly following a call from the nurse's office with a red terror signal coded “LICE” or “STREP.” Surprisingly we have all adapted to such daily optimization riddles, and masterfully manage them without any computerized support.

Here is a real life puzzles that may look painfully familiar:
Summer is not easy on the working parents. Camps are usually further away from home than schools are, many camps start later and end earlier than schools. So, go figure how to squeeze an 8-hour working day in-between...
This puzzle is inspired by my friend's real life story:


She lives 15 miles South from where she works (home marked H and work marked W on the sketch).
Her son goes to a tennis camp 10 miles West from home (marked C). She drops him off, then heads to work. As she is not able to pick her son from the camp at 4pm, she arranged a carpool with another family, that unfortunately lives in the opposite direction: 5 miles East from her (marked B on the sketch). So, on a regular camp morning, my friend leaves her house early to pick up this other kid, then drives both kids to the camp and then continues to work. In addition to all this, on one morning last week she got a call from a friend from work. Friend had some car trouble and pleaded to be picked up on her way to work. Friend lives 2 miles South from my friend's home (marked F).
What is the minimum number of miles my friend had to travel on this hectic morning before reaching her work?

See the answer.

Before letting anyone drive your kids, make sure they practice with a Wolf, a Sheep and a Cabbage:

.

49 comments:

  1. ED Hardy Outlet http://www.edhardypopsale.com

    Michael Kors Outlet http://www.michaelkorsoutletsonlines.us.com

    Coach Outlet http://www.coachoutletonlinesstore.us.com

    Kate Spade Outlet http://www.katespadeoutletsstore.us.com

    Cheap Jordans http://www.cheapjordansretro.us.com

    Michael Kors Outlet Store http://www.michaelkorsoutletsstores.us.com

    Coach Handbags http://www.coachhandbagstore.us.com

    Coach Factory http://www.coachoutletsonlinestore.us.com

    Oakley Sunglasses http://www.oakleyglassessale.us.com

    Tory Burch Outlet http://www.toryburch-outlet.us.org

    Longchamp Handbags http://www.longchampoutlets.us.com

    Louis Vuitton Outlet http://www.pagina16.com

    Michael Kors Handbags http://www.innnov8.com

    Coach Outlet http://www.innnovate.com

    UGG Boots http://www.uggbootsoutlets.us.com

    Red Bottom Shoes http://www.redbottomshoeoutlet.com

    Moncler Jackets http://www.monclerdownjackets.us.com

    North Face Outlet http://www.northfaceoutletblackfriday.com

    Kate Spade Black Friday http://www.katespadefactoryoutlet.us.com

    Moncler Outlet http://www.monclerjacketsoutlet.com.co

    Coach Factory http://www.maganates.com

    Coach Handbags http://www.coachhandbagsfactoryoutlet.us.com

    Kate Spade Outlet http://www.katesapdeoutlet.us.org

    North Face Jackets http://www.northfacejacketsinc.com

    Ray Ban Outlet http://www.raybanoutlets.com.co

    Cheap Ray Ban Sunglasses http://www.raybanglasses.name

    Burberry Outlet http://www.burberryoutletsstore.us.com

    Cheap UGG Boots http://www.uggbootoutlet.us.com

    Christian Louboutin Shoes http://www.christianlouboutinshoes.name

    North Face Outlet http://www.outletnorthface.name

    Coach Factory Outlet http://www.coachfactoryoutlet.name

    Kate Spade Outlet http://www.katespadeoutletonline.name

    Michael Kors Outlet http://www.michaelkorsoutlet.name

    Coach Outlet http://www.coachoutlet.name

    Nike Air Max http://www.nikeairmaxstore.ru

    Moncler Jackets http://www.monclerjacketsru.ru

    Nike Roshe Run http://www.tanienikerosherun.pl

    Cheap Nike Air Max http://www.nike-airmaxaustralia.com

    Buty Nike Air Max http://www.airmaxsprzedazdla.pl

    Nike Air Max Damskie http://www.cheapnikeairmax.pl

    Nike Air Max http://www.nikeairmax.com.co

    Cheap Red Bottom Shoes http://www.redbottomshoes.name

    Christian Louboutin Outlet http://www.christianlouboutinsoutlets.com

    Burberry Outlet http://www.outletburberry.us.com

    Balenciaga Outlet http://www.balenciagaoutlet.us.com

    Burberry Handbags http://www.burberryshandbag.us.com

    Balenciaga Handbags http://www.balenciagahandbags.us.com

    Louis Vuitton Wallet http://www.louisvuittonwallets.org

    Cheap UGG Boots http://www.uggcheapbootstore.com

    Uggs Boots http://www.uggbootsinc.us.com

    Kate Spade Outlet http://www.katespadeoutleinc.com

    Toms Shoes http://www.tomshoesoutlet.us.com

    Hermes Blet http://www.hermesbeltstore.com

    UGG Boots http://www.uggboots2015.us.com

    UGG Boots Outlet http://www.uggbootsoutlet.net

    UGG Boots Sale http://www.uggbootssale.us.com

    ReplyDelete
  2. 20151016xiaodaige
    new york knicks jersey, http://www.newyorkknicksjerseys.com/
    ray-ban sunglasses, http://www.raybansunglass.com.au/
    hollister shirts, http://www.hollistershirts.co.uk/
    moncler outlet store, http://www.uggoutletstore.eu.com/
    lebron shoes, http://www.lebronjames.us.com/
    calvin klein outlet, http://www.calvinklein.in.net/
    nhl jerseys, http://www.nhljerseys.us.com/
    nike running shoes, http://www.nikerunningshoes.cc/
    bears jerseys, http://www.chicagobearsjerseys.us/
    ugg boots uk, http://www.cheapuggboots.me.uk/
    north face outlet, http://www.thenorthfaces.org.uk/
    coach outlet store, http://www.coachoutletstoreonline.in.net/
    moncler jackets, http://www.moncler.us.com/
    tory burch outlet online, http://www.toryburchoutletonline.in.net/
    swarovski crystal, http://www.swarovski.in.net/
    canada goose outlet, http://www.canadagooseoutlet.com.co/
    michael kors uk, http://www.michaelkorshandbag.co.uk/
    louis vuitton outlet store, http://www.louisvuittonoutletstore.name/
    abercrombie and fitch, http://www.abercrombie-fitch-hollister.fr/
    raiders jerseys, http://www.oaklandraidersjerseys.us/
    michael kors outlet online, http://www.michaelkorsoutletusa.net/
    ralph lauren outlet, http://www.ralphlauren-outletonline.co.uk/
    jets jersey, http://www.newyorkjetsjersey.us/
    oakley sunglasses, http://www.oakleysunglasses-wholesale.us.com/
    puma outlet, http://www.pumaoutletonline.com/
    toms outlet, http://www.toms.us.com/

    ReplyDelete
  3. Thanks for Nice and Informative Post. This article is really contains lot more information about This Topic.
    Movers and Packers Mumbai
    Movers and Packers Delhi
    Movers and Packers Gurgaon

    ReplyDelete
  4. Where's the Difference If you happen to wanting to know what is the primary distinction between a friend and a follower permit me to shed some light upon the subject.buy real facebook followers

    ReplyDelete
  5. All the best blogs that is very useful for keeping me share the ideas
    of the future as well this is really what I was looking for, and I am
    very happy to come here. Thank you very much
    earn to die
    earn to die 2
    earn to die 3
    Hi! I’ve been reading your blog for a while now and finally got the
    earn to die 4
    courage to go ahead and give youu a shout out from
    earn to die 6
    Austin Texas! Just wanted to tell
    earn to die 5
    Hi! I’ve been reading your blog for a while now and finally got the
    happy wheels
    strike force heroes
    slitherio
    you keep up the fantastic work!my weblog
    age of war

    ReplyDelete
  6. بارکد خوان دیتا لاجیک
    بارکد خوان فروشگاهی
    بارکد خوان
    بارکد خوان دیتالاجیک
    بارکد خوان دو بعدی
    بارکد خوان کارت ملی
    بارکد خوان qr
    بارکد خوان qr برای کامپیوتر
    بارکد اسکنر
    بارکد ریدر
    بارکد خوان کامپیوتر
    بارکد خوان دستی
    بارکد خوان کالا
    قیمت بارکد خوان datalogic
    بارکد خوان نوری
    بارکد خوان لیزری
    بارکد خوان تامین اجتماعی
    بارکد خوان بیسیم
    بارکد خوان وایرلس
    بارکد خوان بیسیم axiom
    قیمت بارکد خوان بیسیم
    قیمت بارکد خوان وایرلس
    قیمت بارکد خوان
    فروش بارکد خوان
    خرید بارکد خوان
    قیمت بارکد خوان فروشگاهی
    قیمت بارکد خوان دیتا لاجیک
    قیمت بارکد خوان دیتالوجیک
    بارکد خوان تک بعدی
    بارکد خوان صنعتی
    بارکد خوان PDA
    بارکد خوان پرتابل
    بارکد خوان datalogic
    -----------------------------------------------------------------
    پول شمار
    پولشمار
    اسکناس شمار
    اسکناسشمار
    پول شمار پارا
    اسکناس شمار پارا
    پولشمار پارا
    پول شمار سایان
    اسکناس شمار سایان
    پولشمار پارا مدل 297
    اسکناس شمار پارا مدل 297
    پول شمار پارا مدل 297

    ReplyDelete
  7. دانلود مقاله
    سگ روتوایلر
    عینک آفتابی
    تعمیر تردمیل
    تعمیرات موبایل
    طراحی داخلی
    دکوراسیون مغازه
    شرکت دکوراسیون داخلی
    تعمیر درب اتوماتیک
    تعمیر درب اتوماتیک BFT
    تعمیر درب اتوماتیک Beninca
    تعمیر درب اتوماتیک Utab
    تعمیر درب اتوماتیک Nice
    تعمیر درب اتوماتیک Proteco
    تعمیر درب اتوماتیک Faac
    تعمیر درب اتوماتیک Sommer
    تعمیر درب اتوماتیک Fadini
    تعمیر درب اتوماتیک Beta
    تعمیر درب اتوماتیک Life
    تعمیر درب اتوماتیک V2
    تعمیر کرکره برقی
    تعمیر کرکره برقی مغازه
    تعمیر کرکره برقی پارکینگ
    تعمیر کرکره برقی شیشه ای
    تعمیر آیفون تصویری
    تعمیر آیفون تصویری کوماکس
    تعمیر آیفون تصویری تکنما
    تعمیر آیفون تصویری تابا
    تعمیر آیفون تصویری سیماران
    پنجره UPVC

    دستگاه تصفیه آب

    کانکس
    تعمیر آیفون تصویری الکتروپیک
    تعمیر آیفون تصویری سامسونگ
    تعمیر جک پارکینگ
    تعمیر جک پارکینگ یوروتک
    تعمیر جک پارکینگ پروتکو
    تعمیر جک پارکینگ زومر
    تعمیر جک پارکینگ بنیکا
    تعمیر جک پارکینگ فادینی
    تعمیر جک پارکینگ V2
    نمک
    جوش شیرین
    اسید سولفوریک
    آهک
    بنتونیت
    پرلیت
    کربنات کلسیم
    زئولیت
    پرمنگنات

    ReplyDelete
  8. سود پرک چیست
    تولید کننده سود پرک
    فروش جوش شیرین
    فروش جوش شیرین شیراز
    فروش جوش شیرین چینی
    فروش جوش شیرین اصفهان
    فروش جوش شیرین ایرانی
    فروش جوش شیرین تهران
    خرید جوش شیرین
    خرید و فروش جوش شیرین
    خرید جوش شیرین شیراز
    خريد جوش شيرين
    جوش شیرین چیست
    فروش آب مقطر
    آب دیونیزه
    سود سوز آور مایع
    فروش سود مایع
    فروش سود سوز آور مایع
    قیمت سود مایع
    سود مایع 50 درصد
    فروش سود مایع در اصفهان
    سود مایع چیست
    خرید سود مایع
    تولید سود مایع
    خریدار سود مایع
    تولید کنندگان سود مایع
    سود مایع 50
    حمل سود مایع
    فروش سود سوزآور مایع
    فروش پرمنگنات
    پرمنگنات پتاسیم
    فروش پرمنگنات پتاسیم
    قیمت پرمنگنات پتاسیم
    قیمت پرمنگنات
    فروش آب ژاول
    فروش وایتکس
    کود مرغی پلت شده
    فروش کود مرغی
    فروش کود مرغ
    فروش کود مرغی پلت شده
    فروش کود مرغی پلیت
    فروش کود مرغی پلیت شده
    کود مرغی پلیت
    کود مرغی پلیت شده
    کود مرغی مایع
    فروش کود مرغی فله
    فروش کود مرغی در اصفهان
    فروش کود مرغی مایع
    فروش کود گاوی
    کود گاوی یا گوسفندی

    ReplyDelete
  9. Coach Outlet http://www.coachoutletfactory-stores.us.com

    North Face Outlet http://www.northface-outlets.com.co

    Kate Spade Outlet http://www.katespadefactoryoutlet.in.net

    ED Hardy Outlet http://www.edhardypopsale.com

    Coach Outlet Store Online http://www.coachstoreonline.in.net

    Kate Spade Outlet http://www.katespadeoutletstore.in.net

    Cheap Jordans http://www.cheapjordansretro.us.com

    Michael Kors Outlet Store http://www.michaelkorsoutletsstores.us.com

    Coach Purses http://www.coachpurses.eu.com

    Coach Outlet http://www.coachoutlet2016.us.com

    Tory Burch Shoes http://www.toryburch-outlet.us.org

    Longchamp Outlet http://www.longchampoutlet.in.net

    Michael Kors Handbags http://www.innnov8.com

    Coach Outlet http://www.innnovate.com

    Red Bottom Shoes http://www.redbottomshoes.us.org

    Moncler Jackets http://www.monclerdownjackets.us.com

    North Face Outlet http://www.northfacestoreoutlet.in.net

    Kate Spade Outlet http://www.katespadeoutletstore.us.com

    Moncler Outlet http://www.moncleroutletonline.in.net

    Coach Factory http://www.maganates.com

    Coach Factory Outlet http://www.coachfactorysoutlet.in.net

    Kate Spade Outlet http://www.katesapdeoutlet.us.org

    Ray Ban Outlet http://www.raybanoutletstore.in.net

    Christian Louboutin Shoes http://www.christianlouboutinshoes2016.in.net

    North Face Outlet http://www.northfaceoutlets.us.org

    Coach Factory Outlet http://www.coachoutletstore.name

    Kate Spade Outlet http://www.katespadeoutletonline.name

    Coach Outlet http://www.coach-outlets.us.org

    Nike Roshe Run http://www.tanie-nikerosherun.pl

    Buty Nike Air Max http://www.airmaxsprzedazdla.pl

    Nike Air Max http://www.nikeairmax.us.org

    Red Bottom Shoes http://www.redbottomshoe.in.net

    Christian Louboutin Outlet http://www.christianlouboutinoutlet.us.org

    Balenciaga Handbags http://www.balenciagaoutlets.us.com

    Balenciaga Handbags http://www.balenciaga-handbags.us.com

    Kate Spade Outlet http://www.katespadefactoryoutlet.in.net

    Toms Shoes http://www.tomshoesoutlet.us.com

    Hermes Belt http://www.hermes-belts.us.com

    Prada Outlet http://www.pradafactoryoutlet.com

    Louis Vuitton Outlet http://www.louisvuittonsoutlet.us.com

    North Face Outlet Store http://www.northfaceoutletstore.in.net

    North Face Jackets http://www.north-face.in.net

    North Face http://www.north-faceoutlets.us.com

    Louis Vuitton Outlet http://www.louisvuitton-outlets.us.org

    Timberland Boots http://www.timberland-outlets.us.com

    Cheap Timberland Boots http://www.timberlandoutlet.us.com

    Tory Burch Outlet http://www.outlettoryburch.us.com

    Michael Kors Outlet http://www.michaelkorsoutletusa.us.com

    Ralph Lauren Outlet http://www.ralphlaurenstoreoutlet.us.com

    Gucci Shoes http://www.guccifactoryoutlet.name

    Gucci Outlet http://www.guccioutletco.us.com

    North Face Jackets http://www.northfacefactoryoutlet.us.com

    Prada Outlet http://www.pradaoutlets.in.net

    Hollister Clothing http://www.hollister-clothing.us.com

    Ferragamo Shoes http://www.ferragamoshoes.us.org

    Tiffany Outlet http://www.tiffany-outlets.us.com

    Tiffany Outlet http://www.tiffanyco-outlet.us.com

    NFL Jerseys http://www.nfljerseys.name

    Toms Outlet http://www.outlettoms.us.com

    Cheap Jordans http://www.cheapjordans.eu.com

    North Face Outlet http://www.thenorthfaceoutlet.us.org

    Michael Kors Outlet http://www.michael-korsoutletstores.us.com

    Prada Handbags http://www.pradaoutlet.us.org

    Chan Luu Sale http://www.chanluu.us.com

    Toms Outlet http://www.tomsoutletstores.us.com

    Kate Spade Outlet http://www.katespadeoutletonline.us.org

    Beats By Dr Dre http://www.beatsbydrdre.us.org

    Coach Outlet http://www.coachstoreoutlet.us.org

    Christian Louboutin Shoes http://www.christianlouboutinshoe.eu.com

    Valentino Shoes http://www.valentinoshoes.eu.com

    Michael Kors Outlet http://www.michaelkorsoutlet.us.org

    Coach Factory Outlet http://www.coachfactoryoutlet.us.org

    Coach Outlet Online http://www.coachoutletonlinestore.us.org

    Coach Purses http://www.coachpurse.us.com

    ReplyDelete

Note: Only a member of this blog may post a comment.