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The average score of 42 students in a te...

The average score of 42 students in a test is 69. The ratio of the number of boysto that of girls is 10`:` 11. The average score of the boys is 20% more than that of the girls. The average score of the boys is `:`

A

75.2

B

73.5

C

75.6

D

82.8

Text Solution

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The correct Answer is:
C
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