Question

Ticket rate for the science exhibition is rupees 10 for a child and 25 rupees for the adult. Rs. 740 was got from 50 persons. How many children among them?

Answer 1

Let the numbers of children be x

Then the number of adult = 50 – x

∴ 10 x + 25 (50 – x) = 740

10 x + 1250 – 25 x = 740

1250 – 15 x = 740

15 x = 1250 – 740

x = \(\frac{1250-740}{15}\) = 34

Number of adults = 50 – 34 = 16