Question

72% of 25 students got good narks in Mathematics, then how may people did not score good marks ? 

A) 13 

B) 11

C)10 

D) 7

Answer 1

Correct option is  D) 7

Answer 2

Correct option is (D) 7

It is clear that rest 28% of 25 students did not score good marks.

\(\therefore\) Number of people who did not score good marks

= 28% of 25 \(=\frac{28}{100}\times25\)

\(=\frac{28}4=7\)