Together 3281

My father said: I am 40 years old. One son is 16 years old, and the other is three years old. How many years will my sons be together as I am now?

Correct answer:

x =  10.5

Step-by-step explanation:

40 = (16+x)+(3+x)

2x = 21

x = 21/2 = 10.5

x = 21/2 = 10.5

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