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OpenStudy (anonymous):
A boy is 17 years. 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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OpenStudy (anonymous):
A boy is 17 the sister is TWICE old, so 17*2=34 the boy will be 23 in 6 years so 34+6=40 I hope that helps ;)
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