Multiple Choice Questions on A bag contains certain number of coins of different denominations The ratio of the number of Rs 1 co........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

A bag contains certain number of coins of different denominations The ratio of the number of Rs 1 co...........

Quant (SSC) Ratio, Proportion
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    A bag contains certain number of coins of different denominations. The ratio of the number of Rs. 1 coins to Rs. 2 coins is 5 : 7, respectively and the ratio of number of Rs. 2 coins to Rs. 5 coins is 7 : 6 respectively. Find the total value of the Rs. 5 coins, if the total value of the Rs. 1 coins in the bag is Rs. 15. 

    180

    Incorrect Answer

    90

    Correct Answer

    120

    Incorrect Answer

    150

    Incorrect Answer
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    Explanation:
    Ratio of the number of coins of denominations Rs. 1 : Rs. 2 : Rs. 5 = 5 : 7 : 6
    Let, the number of coins of Rs. 1, Rs. 2 and Rs. 5 in the bag be 5x, 7x and 6x.
    Since, the total value of Rs. 1 coin in the bag is Rs. 15
    So, the number of coins of Rs. 1 in a bag = 15
    5x = 15 , ⇒ x = 3
    Therefore, number of Rs. 5 coins in the bag = 6x = 18
    So, required value of Rs. 5 coins = 6 × 3 × 5 = Rs.90

    By: Amit Kumar
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