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5% of `420xx?%` of 150=252
A. 12
B. 5
C. 6
D. 8

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Correct Answer - D
5% of `420xx?%` of `150=252`
or `?% ` of `150=(252)/(21)`
or, `(?xx150)/(100) = 12`
or, `?=(12xx100)/(150)=8`

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