Present ages of Andrew n andrell are in
ratio 4:5. Eight years from now, the ratio of their ages will be 5: 6 find their present ages.
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✦ Question
Present ages of Andrew and Andrell are in the ratio 4:5. Eight years from now, the ratio of their ages will be 5: 6 . Find their present ages.
✦Given
Present ages of Andrew and Andrell are in the ratio 4:5. Eight years from now, the ratio of their ages will be 5: 6.
✦ To Find
What's their present ages ?
✦ Solution
Consider Andrew present age = 4x years
Andrell present age = 5x years
Eight years later, Andrew age = ( 4x + 8 ) years
Andrell age = ( 5x + 8 ) years
As per the Question ,
By cross multiplication, we have
6 ( 4x + 8 ) = 5 ( 5x + 8 )
= 24x + 48 = 25x + 40
= 48 - 40 = 25x - 25x
= 8 = x
Hence ,
Andrew present age = 5x years = ( 4 × 8 ) years = 32 years.
Andrell present age = 5x years = ( 5 × 8 ) years = 40 years.
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Sorry upper weala answer saaahi hai
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