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A bag has Rs. 20 in the form of 1 rupee, 50 paise and 10 paise coins in the ratio of 2 : 3 : 5. Find the number of 50 paise coins.
- A2
- B4
- C15
- D10
Answer not set
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CCommunity
Total Sum = 20
Types of coins : 1, 50p and 10p in the ratio 2 : 3 : 5
∴ Total sum = 2x + 3x × 0.5 + 5x × 0.1 = 20
⇒ 4x = 20
⇒ x = 5
∴ Number of 50 paise coins = 5 × 3 = 15 coins
Types of coins : 1, 50p and 10p in the ratio 2 : 3 : 5
∴ Total sum = 2x + 3x × 0.5 + 5x × 0.1 = 20
⇒ 4x = 20
⇒ x = 5
∴ Number of 50 paise coins = 5 × 3 = 15 coins