The mean age of 5 children of a family is 12 years. If four of them ar

1.	The mean age of 5 children of a family is 12 years. If four of them are respectively 6, 11, 13 and 16years, find the age of the sixth child.
Answer» $Answer :$ Let the 5 th child's age be ' a ' According to the question : Age of 4 children + Age of 5 th / TOTAL number of children = 12 / 1 ☞ 6 + 11 + 13 + 16 + a / 5 = 12 / 1 ☞ 46 + a = 60 ☞ a = 60 - 46 ☞ a = 14. Therefore the age of 5 th child is 14.

The mean age of 5 children of a family is 12 years. If four of them are respectively 6, 11, 13 and 16years, find the age of the sixth child.

Answer»

$Answer :$

Let the 5 th child's age be ' a '

According to the question :

Age of 4 children + Age of 5 th / TOTAL number of children = 12 / 1

☞ 6 + 11 + 13 + 16 + a / 5 = 12 / 1

☞ 46 + a = 60

☞ a = 60 - 46

☞ a = 14.

Therefore the age of 5 th

child is 14.

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The mean age of 5 children of a family is 12 years. If four of them are respectively 6, 11, 13 and 16years, find the age of the sixth child.

According to the question :

Therefore the age of 5 th

child is 14.

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