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1. Sunny gets $\frac{7}{9}$ times as many marks in QA as in ENGLISH. If his total combined marks in both the papers is 90. His marks in QA is:

A. 50

B. 60

C. 70

D. 80

Solution:

\begin{aligned} Total Marks = 90 \\ Marks in QA = \frac{7}{9} of 90 \\ = \frac{(7 \times 90)}{9} \\ = 7 \times 10 \\ = 70 \end{aligned}

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