a can finish a piece of work in 16days,and b in 20 days. they work together for 4days and after that, A leaves. how long will B take to complete the remaining work
Answers
A B
16 20
Total Work = LCM( 16 , 20) = 80
5 4
A do 5 units of work in 1 day and B do 4 units of work in 1 day
A + B do 5+4 = 9 units of work in 1 day
Total work = 80 units
A and B work together for 4 days which means they both do 9 * 4 = 36 units of work
Now remaining work is = 80 - 36 = 44 units
As B does 4 unit of work in 1 day
B can do 44 units of work in = 44/4 = 11 days
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Answer:
A can do a piece of work in 16 days and B can finish it in 20 days. They work together for 4
days and then A leaves. In how many days will B finish the remaining work?
