Respuesta :

amanarsalan

Answer:

9 years

Step-by-step explanation:

If,

x = No. of years it will take Ben to to be 4 times older than Ishaan

then,

39 + x = 4(3 + x)

39 + x = 12 + 4x

3x = 27

x = 27

Hence it will take 9 years until Ben is only 4 times as old as Ishaan.

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