Twins 2

The average age of a man and his two twin sons is 30 years. The ratio of the ages of father and one son is 5 : 2, what is the father's age?

Correct answer:

f =  50

Step-by-step explanation:

3f+s+s=30 f:s=5:2  f+2s=3 30 2f = 5s  f+2 52 f=90  f+2 2/5 f=90  9f=450  f=9450=50  f=50   Verifying Solution:   s=52 f=52 50=52 50=5100=20



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