The number of coins of ₹1, ₹5, and ₹10 denominations that a person has are in…
2024
The number of coins of ₹1, ₹5, and ₹10 denominations that a person has are in the ratio 5:3:13. Of the total amount, the percentage of money in ₹5 coins is
- A.
21%
- B.
\(14 \frac{2}{7}\% \) - C.
10%
- D.
30%
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Correct answer: C
Solution: Compute the percentage of the total monetary value contributed by the ₹5 coins.
Let the number of ₹1, ₹5, and ₹10 coins be 5x, 3x, and 13x respectively.
Total amount = 1·5x + 5·3x + 10·13x = 5x + 15x + 130x = 150x.
Amount in ₹5 coins = 5 · 3x = 15x.
Percentage = (15x / 150x) × 100 = 10%.
Therefore, the percentage of the total amount that is in ₹5 coins is 10%.
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