CAT 2020 Exam Shift 1 Solved Paper

Question : 53 of 76

Marks: +1, -0

An alloy is prepared by mixing three metals

{A}, {B}

and

{C}

in the proportion

3: 4: 7

by volume. Weights of the same volume of the metals

{A}, {B}

and

{C}

are in the ratio

5: 2: 6 .

In 130

{kg}

of the alloy, the weight, in

{kg}

, of the metal

{C}

Solution:

Required weight of

C=(\;{7 × 6}/{3 × 5+4 × 2+7 × 6}) × 130=84 {kg}

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