RRB NTPC Mains or Stage 2 Model Paper 1 with solutions

Question : 66 of 120

Marks: +1, -0

There are a total of 200 students in a school, of which

7 /10

th are boys. Find the number of girls in the school.

Solution:

(2) Number of girls

= 200 ×[ 1-7/10]

={200× 3}/10= 60

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