SOLUTION: mean of 15 nos is 5 if 2 is added to each no .what will be the new mean

Question 872638: mean of 15 nos is 5 if 2 is added to each no .what will be the new mean
Found 2 solutions by indra89811, MathTherapy:
Answer by indra89811(24) (Show Source): You can put this solution on YOUR website!
Let the total of 15 nos. = N
The mean of 15 nos is 2
So, N/15 = 2
N=30
If 2 is added to each number, the new total becomes 30 + (2*15)= 60
The new mean = 60/15 = 4
Answer by MathTherapy(10552) (Show Source): You can put this solution on YOUR website!

mean of 15 nos is 5 if 2 is added to each no .what will be the new mean

New mean will be old mean, increased by the constant that's being added to each value.
Therefore, new mean = 5 + 2, or
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