A boy is 17 years old and his sister is twice as old. when the boy is 23 years old what will be the age of his sister?

Question

Mathematics

Eliezer Weiss

24 June, 01:50

A boy is 17 years old and his sister is twice as old. when the boy is 23 years old what will be the age of his sister?

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Answers (2)

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Londyn Coleman · Answer 1

Well if he is 17 and she is 2 and old then she would be 34. Now add 6 years to 17 and that is 23 so now just multiply 23*2 = 46, so when he is 23 she will be 46 year's old.

Maxim Barrera · Answer 2

Boy = 17 years.

Sister = 2*17 = 34 years.

When the boy is 23, that is 17 + 6 = 23, in 6 years time.

The sister will be: 34 + 6 = 40 years old.