📢 Too many exams? Don’t know which one suits you best? Book Your Free Expert 👉 call Now!

    Question

    A purse has 10p, 20p and 50p coins in the ratio 9 : 6 :

    5. If the total value is Rs. 55.20, find 75% of the number of 50p coins.
    A 45 Correct Answer Incorrect Answer
    B 32 Correct Answer Incorrect Answer
    C 65 Correct Answer Incorrect Answer
    D 75 Correct Answer Incorrect Answer

    Solution

    Let counts of 10p, 20p and 50p coins be 9x, 6x and 5x. Total value: (0.1×9x) + (0.2×6x) + (0.5×5x) = 55.20 ⇒ 0.9x + 1.2x + 2.5x = 55.20 ⇒ 4.6x = 55.20 ⇒ x = 12 Number of 50p coins = 5x = 60 Required = 75% of 60 = 0.75×60 = 45

    Practice Next
    More Ratio Questions

    Relevant for Exams:

    ask-question