kutysammaSarelines kutysammaSarelines

13-03-2017
Mathematics

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John, twelve years old, is three times as old as his brother. how old will john be when he is twice as old as his brother

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cierra5sos cierra5sos

16-03-2017

i believe his brother is 4 at the moment, since 4*3 is 12. in 4 years John will be 16 and his brother will be 8, and 8 is half of 16. so 16?

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