Question

A and b complete a work in 6 day .A alone can do it in 10 days if both together can do the work in how many days

Answer 1

Step-by-step explanation:

A work complete by a and b in 6 days

Alone A work done in 10 days

THEN,

1/6 - 1/10

LCM of 6 and 10 = 30

5 - 3 / 30 = 2/30

now your answer is= 15 days

Hope it helps