JEE MATHEMATICS MCQ: STATISTICS

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Application +4 | -1

The mean weight of

120

students in the second year class of a college is

56 {~kg}

. If the mean weights of the boys and that of the girls in the class are

60 {~kg}

and

50 {~kg}

respectively, then the number of boys and girls separately in the class are

View answer and explanation

Correct option: C

72,48

Option C (72,48) is correct because it solves the system of equations to find the number of boys and girls based on their mean weights.

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