Douglas M. answered 05/25/16
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Over 20 years experience Tutoring Algebra and Trigonometry
Hi Maria
I am not certain the age group for your problem, but I will have you approach this problem by factoring the product given which is 50. The factors are 2 and 25 and 25 can be factored again. Since two of the boys are twins, then they are assumed to be the same age, and if you take the factor of 25, then you will see that it is square of the age of the twins.
Michael D.
The answer is 5.
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05/25/16
Maria M.
05/25/16