Question

the mean weight of a class of 20 students is 48 kg. 2 more students weighing 60 kg and 58 kg respectively join the class . what is the mean weight of the class now.

Answer 1

Let the sum of all weights be x. Then,

Mean weight = x / 20 = 48 kg

= x = 48 x 20

= 960

If 2 more students are added, then

960 + 58 + 60

__________

22

= 1078

___

22

= 49

Therefore, the mean weight of the class now is 49.

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Answer 2

Answer:

49 is ur answer

hope it helps