Question

90% students of a school took part in the annual function.If 380 students did not participate in the event find the number of students who participated in the event
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Answer 1

Solution :-

☑ Let the number of students who participated be x...

$90 \times \frac{1}{100} \times x = 380 \\ \\ x = 380 \times \frac{100}{90} \\ \\ x = 4.22 \times 100 \\ \\ x = 422 \: approx$