Question

There are a total of 200 students in a school, of which 7/10th are boys. Find the number of girls in the school.

A) 80 B) 60 C) 40 D) 120

Answer 1

Answer:

B) 60

Step-by-step explanation:

Total number of students = 200

Part of school consisting of boys = 7/10

Part of school consisting of girls = 1 - 7/10 = 3/10

(take the LCM to get 3/10)

therefore number of girls in the school

= 3/10 × 200

after simplifying,

= 3 × 20

= 60

ans) number of girls in school = 60

this question can be done the same way if they ask anything else like this but I think it is obvious