If the arithmetic mean of seventy-five numbers is calculated, it is 35. If each number is increased by 5, then mean of new number is

(a) 30 (b) 40 (c) 70 (d) 90

If the arithmetic mean of seventy-five numbers is calculated, it is 35. If each number is increased by 5, then mean of new number is

(a) 30 (b) 40 (c) 70 (d) 90

1 Answer

127 votes

A.M. of 75 numbers =35. Sum of 75 numbers

=

Total increase =Increased sum =

Increased average =

127 votes

127