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Rahul was 4 times old as his son 8 years back and he will be 2 times old as his son after 8 years. calculate rahul and his sons age |
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Answer» LET the RAHUL present AGE be x years and his son age be y years. eight years before Rahul age = x - 8 His son' s age = y - 8 Therefore, x - 8 = 4 ( y - 8 ) x - 8 = 4y - 32 4y - x = 24..........…......….(i) Eight years after, Rahul age = x + 8 His son age = y + 8 Therefore, x + 8 = 2 ( y + 8 ) x + 8 = 2y + 16 x - 2y = 8 ................(ii) By adding eq. (i) and (ii). We have, 2y = 32 y = 16 Put the value of y = 16 in eq. (ii) x = 40 Hence the present age of Rahul is 40 years and , his son presentage is 16 years |
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