a and b can do a piece of work in 20 days. a alone can finish the work in 25 days. if they undertake a work and are paid for the whole work, what will be the share of a?
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Answered by
14
a+b a
time 20 25
eff. 5 4
total work=l.c.m of 20,25 =100
a share 100/5=20
time 20 25
eff. 5 4
total work=l.c.m of 20,25 =100
a share 100/5=20
vijayyagik1:
20
Answered by
17
A and B can do a piece of work in 20 days
⇒ 1 day = 1/20 of the work
A alone can do the work in 25 days
⇒ 1 day = 1/25 of the work
Find the amount of work B can do in a day:
1/20 - 1/25 = 1/100
Find their ratio:
Ratio of A : B = 1/25 : 1/100
Multiply both sides by 100:
Ratio of A : B = 4 : 1
Answer: A should get 4 shares for every 1 share that B gets.
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