Question

the mean of 10 numbers is 70 then the sum of 10 numbers is ?

Answer 1

Step-by-step explanation:

Since we have given that

Mean of 10 numbers = 70

So, sum of 10 numbers would be

70\times 10=70070×10=700

If one number i.e. 70 is removed,

then, the sum becomes,

700-70=630700−70=630

So, mean of 9 numbers would be

\dfrac{630}{9}=709630=70