Jinu's present age is two-fifth of the age of his mother. After 8 years, he will be one-half of the age of his mother. How old is the mother at present?
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Jinu's mother's present age =x
Jinu's present age =2x/5
After 8 years
mothers age=x+8
jinu's age=(x+8(/2
i.e,2x/5+8=(x+8)/2
=>(2x+40)/5=(x+8)/2
=>x=4
Jinu's present age =2x/5
After 8 years
mothers age=x+8
jinu's age=(x+8(/2
i.e,2x/5+8=(x+8)/2
=>(2x+40)/5=(x+8)/2
=>x=4
neerajchem1973:
i think solution is wrong
,2x/5+8=(x+8)/2
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Jinu's mother's present age = x
Jinu's age = (2/5)x
After 8 years Jinu's mother's age = x+8
After 8 years Jinu's age = (2/5)x +8
(2/5)x +8 = (x+8)/2
(2x+40)/5 = (x+8)/2
(2x+40)*2 = (x+8)*5
4x+80 = 5x+40
x = 40
Jinu's mother's present age = 40 years
Jinu's age = (2/5)x
After 8 years Jinu's mother's age = x+8
After 8 years Jinu's age = (2/5)x +8
(2/5)x +8 = (x+8)/2
(2x+40)/5 = (x+8)/2
(2x+40)*2 = (x+8)*5
4x+80 = 5x+40
x = 40
Jinu's mother's present age = 40 years
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