? % of 400 + 40% of 160 = 17% of 400

Simplification and Approximation 16/11/2020

A. 4
B. 0.1
C. 1
D. 0.4

Explanation:

? % of 400 + 40% of 160 = 17% of 400

?/100 of 400 + 40/100 of 160 = 17/100 of 400
?(4) + 64 = 68 => ? = 1

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