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Question

The average height of 35 girls out of a class of 40 is 160 cms, and that of the remaining girls is 152 cms. The average height of the whole class is (cms):



Your Answer
A

158

Correct Answer
B

159

Your Answer
C

160

Your Answer
D

161

Your Answer
E

162


Solution

The correct option is E

159


35×160+5×15240=159

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