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    Question

    Metal mixture ‘P’ consists of iron and nickel in a 4:3

    ratio, and metal mixture ‘Q’ contains only nickel and chromium in a 1:2 ratio. If 35 grams of ‘P’ and 60 grams of ‘Q’ are mixed together, then what will be the final ratio of iron, nickel, and chromium?
    A 3:7:2 Correct Answer Incorrect Answer
    B 4:7:8 Correct Answer Incorrect Answer
    C 2:5:1 Correct Answer Incorrect Answer
    D 9:5:7 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Weight of iron in 35 grams of ‘P’ = 35 × (4/7) = 20 grams

    So, weight of nickel in 35 grams of ‘P’ = 35 − 20 = 15 grams

    Weight of nickel in 60 grams of ‘Q’ = 60 × (1/3) = 20 grams

    So, weight of chromium in 60 grams of ‘Q’ = 60 − 20 = 40 grams

    So, total weight of nickel = 15 + 20 = 35 grams

    So, required ratio = 20 : 35 : 40 = 4 : 7 : 8

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