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Subject :IMO    Class : Class 8

Twenty years ago, my age was of my present age. What will be my age after fifteen years?

A66 years
B45 years
C33 years
D35 years


Can anybody help me with this question as my answer was coming 30 but the answer is 45?

Ans 1:

Class : Class 8
This equation is formed like that: Let present age =x Twenty years ago=x-20 A.T.C x-20 = 1/3 ×x -20 =1/3x-x -20 = -2/3x 20÷2/3 =30 years Age after 15 years =30+15 =45 years

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