Question

The average of 10 numbers is 23. If each number is increased by 4, what will the new average be?
$\left[2Marks\right]$

Answer 1

Average of 10 numbers = 23

Sum/Total numbers = 23

Sum/10 = 23

Sum of the 10 numbers = 230

If each number is increased by 4, the total increase = 4 x 10 = 40
$\left[1Mark\right]$

New sum = 230 + 40 = 270

Therefore, the new average = 270/10 = 27
$\left[1Mark\right]$