Math, asked by suhanakarishma43391, 1 year ago

A alone can finish a work in 12 days and b can do it in 15 days.how much time they take to do it,if both a and b work together

Answers

Answered by Anonymous
2
A alone can finish a work in 12 days
A in 1 day does 1/12 work

B alone can finish  work in 15 days
B in 1 day can do 1/15 work

Together in 1 day, A and B do: 1/12 + 1/15 = 9/60 = 3/20 work
3/20 work == 1 day
1 work== x days
x= 20/3 days 
Answered by kripavinu90
0

Answer is 20/3 days.

hope it helps..........

purple you.........

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