The average age of five members of a family is 21 years. If the age of the grandfather be included, the average is increased by 9 years. The age of the grandfather is:
Answers
Answered by
2
Sum of observations = 180(new)
Sum of observations = 105(initial)
180 - 105 = 75
Grandpa age = 75
Pl mark me brainliest
Sum of observations = 105(initial)
180 - 105 = 75
Grandpa age = 75
Pl mark me brainliest
Similar questions