Chain Rule Practice Test 2 with solutions

© examsiri.com

Question : 17 of 40

Marks: +1, -0

Some persons can do a piece of work in 12 days. Two times the number of such persons will do half of that work in:

12 days
3 days
6 days
4 days

Solution:

Work	Persons	Days
1	x	12
1/2	2x	a

⇒

a/{12}

=

x/{2x} × 1/2

∴ a =

1/4 × 12

= 3 days

© examsiri.com

Go to Question:

Prev Question

Next Question