1.

mine tIproduct of 3 brothers' ages is 175. Two are twins. How old is the09 Theother one?

AnswerΒ»

suppose

Prime factorize 175 we get 5 X 5 X 7 we know that age of 2 twins is same, so 2 same numbers are five so age of twins is 5 the only number left is 7 and hence will be the age of the other one. Hence answer is 7

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