the present age of father is three years less than the five times the age of his son. after 5 years the age of the father will be three years more than three times the age of the son. now what is the present age of son?
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Answered by
0
Present age of son = x, father = 5x.
(5x - 5) = (x - 5) . 10
5x - 5 = 10x - 50
-5 + 50 = 10x - 5x
5x = 45
Remember the present age of father is 5x. He is 45 years old.
(5x - 5) = (x - 5) . 10
5x - 5 = 10x - 50
-5 + 50 = 10x - 5x
5x = 45
Remember the present age of father is 5x. He is 45 years old.
Answered by
7
let the present age of son be = x
and the age of father = 5x -3
their ages after 5 years :--
son = x +5
father = (5x -3)+5
now,
==>(x +5)3 = [ (5x -3)+5 ]+3
==>3x + 15 = 5x -3+5+3
==>3x +15 = 5x +2+3
==>3x +15= 5x +5
==>3x -5x = -15 +5
==>-2x = -10 [ minus sign cancelled out]
==> x = 10/2
==> x = 5
~~~~~~~~~~~~~~~~~
SO,
THE AGE OF SON = 5 (X)
AND AGE OF FATHER = 22
= 5× 5 -3 (5X -3)
= 25-3
= 22
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