Question

Find the value of 'x' if the mean of following numbers is 16

20,13,x,15,20,16,15,12​

Answer 1

Mean = 16

(20+13+x+15+20+16+15+12)/8 = 16

(111+x)/8 = 16

111 + x = 128

x = 17

Answer 2

The cost of a bat was ₹120 in December the same bat now ₹150. Find the Percentage in the cost of the nat