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1. Study the table and answer the questions:
The table given here

What is the overall average of marks in the four subjects in the year 2009?

A. 63

B. 64

C. 65

D. 60

Solution:

\begin{aligned} Average in four subjects, \\ = \frac{56 + 68 + 68 + 48}{4} \\ = \frac{240}{4} \\ = 60 \end{aligned}

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