The following pie-charts show the distribution of students of graduate and post-graduate levels in seven different institutes — M,N,P, Q, R, S and T in p town.

 

piechart-ex2.jpg

1)

What is the ratio between the number of students studying at post-graduate level from institute S and the number of students studying at graduate level from institute Q?


A) 13 : 19

B) 21 : 13

C) 13 : 8

D) 19 :13

Answer:

Option D

Explanation:

Required ratio = ( (21% of 24700) / (13% of 27300) ) = ( ( 21 X 24700 ) / ( 13 X 27300 ) )= 19/13