A bag contains Rs.252 in the form of coins of 1, 2 and 5 rupees in the ratio of 3 : 7 : 5. What is the number of Rs.2 coins in the bag.

- 56 coins
- 35 coins
- 42 coins
- 48 coins
- None of the above

Option 3 : 42 coins

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**Given:**

Ratio of 1, 2 and 5 rupees coins = 3: 7 : 5

**Calculations:**

Let the ratio be x

According to questions,

⇒1(3x) + 2(7x) + 5(5x) = 252

⇒ 3x + 14x + 25x = 252

⇒ 42x = 252

⇒ x = 6.

Number of 2 rupees coins = 6 × 7 = 42

**∴ Number of Rs. 2 coins in the bag is 42**

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