Question

The mean weight of 15 students is 110 kgs. The mean weight of 5 of them is 10
another 5 is 125 kgs. What is the mean weight of the reminder ?
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Answer 1

Answer:

Mean weight of the reminder = 195 kg .

Step-by-step explanation:

Mean formula is given by ; Mean = Sum of all values ÷ Total no. of observation

We are given that the mean weight of 15 students is 110 kgs.

So, total weight of all 15 students = 15 * 110 = 1650 Kgs

Also, the mean weight of 5 of them is 10 kg.

So, total weight of 5 students = 5 * 10 = 50 kg

And, the mean weight of  another 5 is 125 kgs.

So, total weight of these students = 5 * 125 = 625 kg

Hence, Total weight of remaining 5 students = 1650 - 50 - 625 = 975 kg

Therefore, mean weight of remainder 5 students = 975 ÷ 5 = 195 kg.

Answer 2

Answer:

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