Chain Rule Practice Test 1 with solutions

Question : 23 of 40

Marks: +1, -0

A certain number of men can finish a piece of work in 100 days. If there were 10 men less, it will take 10 days more for the work to be finished. How many men were there originally?

Validate

Solution:

Days	Men
100	x
110	x-10

⇒

{x-10}/x

{100}/{110}

⇒ 110x – 1100 = 100x
⇒ 10x = 1100
∴ x = 110
Hence, initially the number of men = 110

Go to Question:

Prev Question

Next Question