A bag has Rs. 785 in the denomination of Rs. 2, Rs. 5 and Rs. 10 coins. The coins are in the ratio of 6 : 9 : 10. How many coins of Rs. 5 are in the bag?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 45.
| Understanding/Application |
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Let number of coins of ₹ 2, ₹ 5 and ₹ 10 be 6x, 9x and 10x respectively. Total amount = (2 × 6x) + (5 × 9x) + (10 × 10x) = 785 |
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12x + 45x + 100x = 785 x = 785/157 = 5 Number of Rs. 5 coins = 9x = 9(5) = 45 |