The ratio between the present ages of P and Q is 6 : 7. If Q is 4 years older than P, what will be the ratio of the ages of P and Q after 4 years?
A. 3 : 4
B. 3 : 5
C. 4 : 3
D. None of these
সঠিক উত্তরঃ
D.
None of these
Explanation:
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