Question

A group of men decided to do a work in 13 days but 6 of them become absent . If the rest of the group did the work in 15 days find the original no. of men

Answer 1

Step-by-step explanation:

Let the number of labour =x

Initially work should be completed in 10 days

so for one labour it takes 10×x days

But when the labour is 5 less it will complete in 12 days

so for one labour it takes 12×(x−5) Days

hence 10x=12×(x−5)

⟹10x=12x−60

⟹10x−12x=−60

⟹−2x=−60

⟹x=30