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A boy is 5 years old and his sister is three times as old as he is. When the boy is 10, how old will his sister be?

A boy is 5 years old and his sister is three times as old as he is. When the boy is 10, how old will his sister be?
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2 votes
A boy is 5 years old and his sister is three times as old as he is.

When the boy is 10, how old will his sister be?

User Dave Swartz
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2 Answers

2 votes
His sister will be 20, right!
User Pazams
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The sister is 15 and the brother is 5 so add 5 years on top of 15 and you get the sisters present age which is 20


User Erichelgeson
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