Multiple choice

Rahul has 50 p, 25 p, and 10 p. coins in the ratio of 5 : 9 : 4 amounting to Rs 412 .Find the numbers of coins of 50 p, coins ?

  1. 100

  2. 200

  3. 300

  4. 400

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

Let the number of 50p, 25p, and 10p coins be 5x, 9x, and 4x respectively. Total value = 0.50(5x) + 0.25(9x) + 0.10(4x) = 2.5x + 2.25x + 0.4x = 5.15x. Given 5.15x = 412, so x = 80. Therefore, number of 50p coins = 5x = 5(80) = 400.