Multiple choice

A bag contains coins amounting to Rs. 870 in the denominations of 1-rupee, 50-paisa and 25-paisa in the ratio 3 : 5 : 7. Find the respective number of coins in each denomination.

  1. 240, 720, 800

  2. 360, 540, 800

  3. 360, 600, 840

  4. 360, 600, 800

  5. 450, 750, 1050

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Given: A bag containing coins of 1-rupee, 50-paisa and 25-paisa. Coins are in the ratio of 3 : 5 : 7. Let the number of coins of 1-rupee, 50-paisa and 25-paisa be 3x, 5x and 7x, respectively. Value of 1-rupee coins = Rs. (3x × 1) = Rs. 3x Value of 50-paisa or -rupee coins = Rs. = Rs. x Value of 25-paisa or -rupee coins = Rs. = Rs. The bag contains Rs. 870. According to the question, 3x + x + = 870 = 870 = 870 x = 120 1-rupee coins = 3 120 360 50-paisa coins = 5 120 600 25-paisa coins = 7 120 840