Question

15 )
In a class of 45 students 30 opted for Mathematics and 32 opted for Biology. How many have opted for only Mathematics?

a. 30


b. 45


c. 13


d. none of the above

Answer 1

Answer:

a) 30

I hope it will help you

Answer 2

Answer:

none above

Step-by-step explanation:

Because if we make sum of 30 and 32 the answer will be 62 and if we subtract 62-42 the answer is 20 and it is not in the option.