Correct Answer - Option 4 : 240, 160, 260
Let x be the common multiple.
The ratio of the number of coins of each type = 12 : 8 : 13
So, the number of 50p coins is 12x, the number of 25p coins is 8x and the number of 10p coins is 13x.
According to the question:
(0.50 × 12x + 0.25 × 8x + 0.10 × 13x) = 186 (Here paise is converted to rupees because the total amount is given in terms of rupees)
(6x + 2x + 1.3x) = 186
9.3x = 186
x = 20
Number of 50p coins = 12x = 12 × 20 = 240
Number of 25p coins = 8x = 8 × 20 = 160
Number of 10p coins = 13x = 13 × 20 = 260
Hence, “240, 160, 260” is the correct answer.
