Question

if there are 50 students in a class and 90 % passed a test ,then find the number of students who failed ​

Answer 1

➤ Answer :-

Number of students passed $=$

$\dashrightarrow \tt90 \bf\% \: \sf \: of \: \: 50$

$\dashrightarrow \tt \frac{90}{100} \times 50 = \frac{90}{100} \times \frac{50}{1}$

$\dashrightarrow \tt \cancel\frac{4500}{100} = 45$

Now,

Number of students failed $=$

$\dashrightarrow \tt50 - 45$

$\dashrightarrow \tt5$

$\Huge\therefore$5 students had failed in the test.

Answer 2

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