On Christmas , A beggar earns 71 rupees in form of 20-paisa and 25-paisa.

He collects total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got ?

20 paisa coins : 200

25 paisa coins : 124

Explanation:

Say he collect 20-paisa coins be A

Say he collect 25-paisa coins be B

=>number of 25-paisa coins = (324 - A).

Therefore,

0.20 X A + 0.25 (324 - A) = 71

=>20A + 25 (324 - A) = 7100

=>5A = 1000

=>A = 200.

Hence, number of 25-paisa coins = (324 - A) - 124.