72% of 25 students got good narks in Mathematics, then how may people did not score good marks ?
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
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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 \(=\frac{28}{100}\times25\)
\(=\frac{28}4=7\)
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