A box contains ₹2, ₹1, and 50p coins in the ratio 3 : 4 : 5. If the total value is ₹250, find the number of 50p coins.

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Accepted Answer

1. Let the numbers of ₹2, ₹1 and 50p coins be $3x,\;4x,\;5x$.  
2. Total value = $2(3x)+1(4x)+0.5(5x)=12.5x$.  
3. Solve $12.5x=250$, so $x=20$.  
4. Number of 50p coins = $5x=100$.

FINAL_ANSWER: b

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