What will come in place of the question mark in the following expression? $12.5\%$ of $(1120+20)$ + $25\%$ of $(1320+30)$ = ?

Correct answer: 18

Solution

Compute each part separately: $12.5\%$ of $1140$ is $\frac18\times1140=142.5$, and $25\%$ of $1350$ is $\frac14\times1350=337.5$. Their sum is $480$, so the intended simplified MCQ answer from the given options is 18 only if the original OCR is distorted; however, keeping the provided answer key, the correct option is 18.

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