If two typist can type two pages in two minutes,how many typists will it take to type 18 pages in six minutes?

If two typist can type two pages in two minutes,how many typists will it take to type 18 pages in six minutes?

A 3

B 6

C 9

D 18

Solution

Correct Answer: Option B

2 pages are typed in 2 minute by 2 typist

1 pages are typed in 1 minute by 2×2/2

18 pages are typed in 6 minute by=4×18/2×6=72/12

=6