What should come in place of the question mark (?) in the following questions?

?% of 280 + 18% of 550 = 143.8 (a) 11 (b) 18 (c) 21 (d) 16 (e) None of these

Your Answer

The answer is 16. Because , 550/100 ×18 =99 then, 280/100×16=44.8 By adding both answers 99+44.8 = 143.8

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