Oct 25, 2010

Find out no. of days.

A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in??

Answer:
45(or)221days.
22




Explanation:
Ratio of times taken by A and B = 1 : 3.
The time difference is (3 - 1) 2 days while B take 3 days and A takes 1 day.
If difference of time is 2 days, B takes 3 days.
If difference of time is 60 days, B takes3x 60= 90 days.
2
So, A takes 30 days to do the work.
A's 1 day's work =1
30
B's 1 day's work =1
90
(A + B)'s 1 day's work =1+1=4=2
30909045
 A and B together can do the work in45= 221days.
22

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