Question

father age is 3 times the age of his son 5 year later fathrr will be 2 and a half time asa old as his son
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Answer 1

Answer:

Father = 45 yrs

Son = 15 yrs

Step-by-step explanation:

F=3S

F+5 = 2.5(S+5)

Substitute F=3S

3S+5=2.5S+12.5

0.5S=7.5

S=15

F=45

Answer 2

Answer:

The age of the son is 15 and the father's age is 45

Step-by-step explanation:

Let X be the age of the son. Let B be the age of the father. Now, we know that 3X = B, and in 5 years, so that is (X + 5)2.5 = B + 5.

We want only one unknown in an equation, so since B = 3X, we substitute 3X into B, that is --> (X + 5)2.5 = 3X + 5. Solving this equation gives X = 15, so the son's age is 15 years, and therefore, the father's age is 3 times 15 which is 45.

I am not 100% sure though.