Question

70 coins of 10 paise and 50 paise are mixed in a purse.If the total value of the money in the purse is rs 19, find the number of each type of coins.​

Answer 1

Step-by-step explanation:

Suppose the number of 50 paise coins are x.

Total number of coins = 70

Then number of 10 paise coins = (70 - x)

So total money = $0.50x + 0.10(70 - x) = 19 \\ = 0.50x + 7 - 0.10x = 19 \\ = 0.40x = 12 \\ = x = \frac{12}{0.40} = 30$

so number of 50 paise coins = 30

And number of 10 paise coins = 70 - 30 = 40