Study the given pie - charts and answer the question that follows.
The pie charts represent the percentage distribution of students of graduate and postgraduate levels in five different institutes P, Q, R, S and T in a town.
(i) Total number of students of graduate level in five different instituttes = 12400
(ii) Total number of students of postgraduate level in five different institutes = 8000
The ratio of the number of students of graduate-level in institutes P and S together to that of postgraduate level in institutes P and S is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 31 : 24
The total number of graduate and postgraduate level students in institute P is:
Total number of graduate-level students in P = 12400 × 25/100 = 3100
Total number of postgraduate level students in P = 8000 × 36/100 = 2880
The total number of graduate and postgraduate level students in institute S is:
Total number of graduate-level students in S = 12400 × 20/100 = 2480
Total number of postgraduate level students in S = 8000 × 18/100 = 1440
The ratio of the number of students of graduate-level in institutes P and S together to that of postgraduate level in institutes P and S is:
=
=