Question

find the average age of 5 boys whose ages are 8 year- 3 months, 9; years - 7 months, 7 years - 2 months, 8 years - 11 months, 5 years - 4 months

Answer 1

Answer: 94.2

Step-by-step explanation:

Convert in terms of months ( for easy calculations )

Age of first boy = 8×12+3 = 99

Age of second boy = 9×12+7 = 115

Age of third boy = 7×12+2 = 86

Age of fourth boy = 8×12+11 = 107

Age of fifth boy = 5×12+4 = 64

Average is calculated by adding a group of numbers and then dividing by the count of those numbers.

Average = 99+115+86+107+64 ÷ 5 = 471/5

              = 94.2

By converting into years,

we get 7 years 8 months approximately.

Hope it helps...