The age of sona and sonali are in the ration 5:3.Five yr hence the ratio of their ages will be10:7.find their present agesl
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let the present age of Sona and Sonali be 5x and 3x
their ages 5 years hence => 5x+5
=> 3x+5
according to question ,
(5x+5)/(3x+5) = 10/7. (as 10:7 = 10/7)
7(5x+5) = 10(3x+5)
35x+35 = 30x+50
35x-30x = 50-35
5x = 15
x = 15/5 => 3
present age of Sona => 5x => 5×3 => 15yrs
present age of Sonali => 3x => 3×3 => 9yrs
hope this helps
their ages 5 years hence => 5x+5
=> 3x+5
according to question ,
(5x+5)/(3x+5) = 10/7. (as 10:7 = 10/7)
7(5x+5) = 10(3x+5)
35x+35 = 30x+50
35x-30x = 50-35
5x = 15
x = 15/5 => 3
present age of Sona => 5x => 5×3 => 15yrs
present age of Sonali => 3x => 3×3 => 9yrs
hope this helps
Answered by
1
15 and 9 are ages
are ade of Sona and sonali
are ade of Sona and sonali
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