The ages of Rahul and Laxmi are in the ratio 5:7. Four years later, the sum of their ages will be 56 years. What are their present ages

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Solution

Age Of Rahul =5x
age of laxmi=7x

four years later
age of rahul=5x+4
age of laxmi=7x+4

sum of their ages=56
5x+4+7x+4=56
12x+8=56
12x=48
x=4

age of rahul=4 x 5=20
age of laxmi=4 x 7 =28

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