**John**can do**1**/**4**of the job in one day. Mary can do**1**/**3**of the job in one day. In one day, if they**work together**they can complete 7/12 of the job. This is because**1**/**4**+**1**/**3**=7/12...1 Answers · Science & Mathematics · 17/10/2009

The three workers do the job in 10/ 3 days, so they complete 3 /10 of the job per day. Two workers complete ⅔ of 3 /10 = ⅕ of the job per day.

5 Answers · Science & Mathematics · 27/05/2018

**1**). Rove needs**4**days in**1**day**work**done =**1**/**4**Harris and**John**, working**together**, need**3**days in**1**day**work**done by both =**1**/**3 work does**the**work**in...3 Answers · Science & Mathematics · 20/10/2010

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**work**done by**John**alone is given by t * (**1**/**1**.5) The**work**done by Linda alone... the two**work together**, their**work**...6 and simplify**4**t +**3**t = 6 Solve...5 Answers · Science & Mathematics · 13/09/2009

Let T be the time it takes them to do the job

**together**. Then the hourly rate will be**1**/T.**1**/T=**1**/**3**+**1**/**4**=7/12, so T=12/7=**1**5/7 hours. It will take them...3 Answers · Science & Mathematics · 15/05/2008

..., Dave,

**John**, and Allison, each can shovel**1**/12,**1**/8,**1**/6 and**1**/**4**of the**work**, respectively. If**work together**,**1**/12 +**1**/8 +**1**/6 +**1**/**4**= 2/24 +**3**/24 +**4**/24 + 6/24 = 15/24 of...2 Answers · Science & Mathematics · 22/04/2011

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**John**Pam can do 6 times the**work**of Susan...if they all**work together**, Pam contributes**1**unit of**work**.**John**contributes...:**1**+**1**/**4**+**1**/6 =**1**+**3**/12 + 2/12 =**1**...8 Answers · Education & Reference · 08/08/2010

**John**can dig a hole in**4**hours, so he can dig**1**/**4**in one hour ...hour Mary can do the same in 7 hours...7 in one hour when they**work together**, they can dig the hole in...x x=420/319 x=**1**,**3**hours approx.1 Answers · Science & Mathematics · 19/12/2010

Sally

**does 1**/**4**of the**work**in**1**hour, and**John does 1**/6 in an hour. In x hours, Sally**does**x/**4**of the...4 Answers · Science & Mathematics · 17/05/2011

Do these as rates: Sally can paint

**1**/**4**of the house per hour**John**can paint**1**/6 of the house per hour Working**together**for T hours...a common denominator of 12: (**3**/12 + 2/12)T =**1**(5...3 Answers · Science & Mathematics · 25/03/2009