# Mr jacob is 55 years old and tony is 7 years old. in how many yearswill mr jacob be 4 times as old as tony

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by asmiuy

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by asmiuy

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present age of mr jacob=55

present age of tony =7

ATQ,

55+X=4(7+X)

⇒55+X=28+4X

⇒3X=27

⇒X=9

so the required number of years is 9.