The number of coins of Rs.1, Rs.5, and Rs.10 denominations that a person has are in the ratio 5:3:13. Of the total amount, the percentage of money in Rs.5 coins is:
Show Hint
- \( 21\% \)
- \( 14\frac{2}{7}\% \)
- \( 10\% \)
- \( 30\% \)
The Correct Option is C
Solution and Explanation
Total amount: \[ 5x \cdot 1 + 3x \cdot 5 + 13x \cdot 10 = 5x + 15x + 130x = 150x. \]
Value contributed by Rs.5 coins: \[ 3x \cdot 5 = 15x. \]
Percentage of total amount: \[ \frac{15x}{150x} \times 100 = 10\%. \] Final Answer: \[ \boxed{10\%} \]
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Four teams – Red (R), Blue (B), Green (G), and Yellow (Y) – are competing in the final four rounds of the Inter-School Science Olympiad, labeled Round A, Round B, Round C, and Round D. Each round consists of one match between two teams, and every team plays exactly two matches. No team plays the same opponent more than once.
The final schedule must adhere to the following rules:
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