Jamal is now 7 times as old as Jashim. If 10 years from now, he will be 3 times as old as Jashim, how old is Jamal now?
A. 5
B. 21
C. 28
D. 35
E. none of these
সঠিক উত্তরঃ
D.
35
Explanation:
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