The age of Ravi 10 years ago was thrice the age of Kiran. Ten years hence, Ravi’s age will be twice that of Kiran. The ratio of their present ages is :

7:3

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Solution

The correct option is A 7:3
Let the age of Ravi and Kiran 10 years ago be 3x and x respectively.
Then, (3x+10)+10=2((x+10)+10)
3x+20=2x+40
Thus, x=20
Ratio of their present ages = (3x+10):(x+10) = 70:30 = 7:3

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The age of Ravi 10 years ago was thrice the age of Kiran. Ten years hence, Ravi’s age will be twice that of Kiran. The ratio of their present ages is :

The correct option is A 7:3Let the age of Ravi and Kiran 10 years ago be 3x and x respectively. Then, (3x+10)+10=2((x+10)+10) 3x+20=2x+40 Thus, x=20 Ratio of their present ages = (3x+10):(x+10) = 70:30 = 7:3

The correct option is A 7:3
Let the age of Ravi and Kiran 10 years ago be 3x and x respectively.
Then, (3x+10)+10=2((x+10)+10)
3x+20=2x+40
Thus, x=20
Ratio of their present ages = (3x+10):(x+10) = 70:30 = 7:3