Question

The mean weight of a group of 10 items is 29 and that of anther group of n items is 3. The mean of
combined group of 10+n items is found to be 30. The value of n is​

Answer 1

Answer:

50

Step-by-step explanation:

Given,

Mean of 10+n is 30

10+n/2=30

10+n=60

n=50

Answer 2

Answer:

4

Step-by-step explanation:

first of all there is mistake in this question mean weight should be 29 instead of 28 and 35 instead of 3 and then used combined mean you would get the answer !