The ratio of present ages of X and Y is 4:5. Which of the following ca – McqOptions

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1.	The ratio of present ages of X and Y is 4:5. Which of the following can't be the ratio of ages of X and Y, 20 years ago ?
A.	0.086805555555556
B.	0.34375
C.	0.38194444444444
D.	0.12847222222222
Answer» D. 0.12847222222222

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