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Quantitative Aptitude (CHSL)

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45:30

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45% of 840 – 65% of 420 – 2 * ? = 43

28

31

35

22

Explanation:

45% of 840 – 65% of 420 – 2 * x = 43
378-273-2x=43
105-2x=43
2x=105-43
2x=62
x=31.

Hence, option 2 is the correct answer.

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