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The average weight of 16 boys in a class is 50.25 kg and that of the remaining 8 boys is 45.15 kg. Find the average weights of all the boys in the class.

47.55 kg
48 kg
48.55 kg
49.25 kg

Correct Answer: 48.55 kg

Explanation:

Required average

=	❨	50.25 x 16 + 45.15 x 8	❩
		16 + 8

=	❨	804 + 361.20	❩
		24

=	1165.20
	24

= 48.55

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