A bag has Rs. 840 in the denomination of Rs. 1, Rs. 2 and Rs. 5 coins. Rs. 1, Rs. 2 and Rs. 5 coins are in the ratio of 8 : 1 : 5. How many coins of Rs. 5 are in the bag?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 120.
| Understanding/Application |
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Let the number of Rs.1 coins, Rs.2 coins and Rs.5 coins be 8x, x and 5x respectively. Value of Rs.1 coins = 8x(1) = Rs.8x Value of Rs.2 coins = x(2) = Rs.2x Value of Rs.5 coins = 5x(5) = Rs.25x Then, Total money present in the bag = Rs.8x + Rs.2x + Rs.25x = Rs.35x Given, Rs.35x = Rs.840 x = 24 |
| Number of Rs.5 coins = 5x = 24*5 = 120 coins |