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    Question

    In a box, there are some coins and rings which are

    either silver or gold. If 40% of the objects are rings and 50% of the coins are silver, then find out the total number of gold coin if there are only 120 rings in the box?
    A 90 Correct Answer Incorrect Answer
    B 80 Correct Answer Incorrect Answer
    C 120 Correct Answer Incorrect Answer
    D 60 Correct Answer Incorrect Answer

    Solution

    40% of the objects are rings So, total objects = 120/40  × 100 = 300 60% of the object are coin -= 300 ×  60/100 = 180 Total coin = 180 Total gold coin = 50% of total coin = 180 ×  50/100 = 90

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