BA LLB Banaras Hindu University 2016 Solved Paper

Question : 124 of 170

Marks: +1, -0

If the sum of a few numbers is 450 and their mean is 50 if another number 100 is included, the means would become

Solution:

Let the numbers be

n

Σ n=450

m=50

then, number

=\;{450}/{50}=9

New sum

=450+100=550

Now new mean

=\;{550}/{9+1}=\;{550}/{10}=55

Go to Question:

Prev Question

Next Question