Question

2.5% pupil in a town died due to some diseases
and 3% of the remaining left the town. If
2,76,450 pupil are still in the town; find the
original number of pupil in the town.
85​

Answer 1

Let, the people in town be x

Then according to the question :

$x \times \frac{(100 - 2.5)}{100} \times \frac{(100 - 3)}{100} = 276450 \\ \\ = > x \times \frac{97.5}{100} \times \frac{97}{100} = 276450 \\ \\ = > x = \frac{276450 \times 100 \times 100}{97.5 \times 97} = 292307.6 = 292308(approx)$

I hope it will be helpful for you ☺

Answer 2

I hope this answer is correct....