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

280*x/100+550*18/100=143.8
280*x/100+99=143.8
280*x/100=143.8-99
280*x/100=44.8
=44.8*100/280
=16% answer

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