Question

3. A lady has only 25-paisa and 50-paisa coins in her purse. If she has
50 coins in all totalling ₹19. 50,
how many coins of each kind does
she have?​

Answer 1

Answer:

22and 28

Step-by-step explanation:

Let x and y be the number of 50-paisa and 25-paisa coins respectively. Then x + y = 50 ……….(i) 0.5x + 0.25y = 19.50 ………(ii) Multiplying (ii) by 2 and subtracting it from (i), we get 0.5y = 50 - 39 ⇒ y = 11/0.5 = 22 Subtracting y = 22 in (i), we get x + 22 = 50 ⇒ x = 50 – 22 = 28

Hence, the number of 25-paisa and 50-paisa coins is 22 and 28

Answer 2

Answer:

The number of 20 paise coins = 28

The number of 50 paise coins = 22

step by step explanation:

refer to the attachment