# By what percentage are the students studying Mathematics in school A,D

| By what percentage are the students studying Mathematics in school A,D and E more than the students studying Biology in the schools B, C and D together.

A. 10%

B. 15%

C. 12.5%

D. 7.5%

### Right Answer is: C

#### SOLUTION

The number of students studying mathematics in the school A,D and E = 135

The number of students studying biology in the school B,C and D =120

Required percentage = (135-120)/120 * 100 = 12.5%

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By what percentage are the students studying Mathematics in school A,D