পিতা ও পুত্রের বয়সের অনুপাত 7:3 । 4 বছর পূর্বে তাদের বয়সের অনুপাত ছিল 13:5। বর্তমানে কার বয়স কত?
A. 66 বছর, 24 বছর
B. 56 বছর, 34 বছর
C. 56 বছর, 24 বছর
D. 46 বছর, 36 বছর
সঠিক উত্তরঃ
C.
56 বছর, 24 বছর
Explanation:
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