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Quantitative Aptitude

Averages

What is the a...

Question

What is the average marks of all the students in Mathematics?

A

128

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B

112

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C

119

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D

138

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E

144

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Solution

The correct option is C 119
Average marks obtained by all the students in Mathematics
$= \frac{150 \times (69 + 85 + 92 + 78 + 74 + 64 + 88)}{100 \times 6} = \frac{150 \times 476}{600} = \frac{476}{4} = 119$

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