alleryA এবং B একই রাস্তা 45 এবং 30 মিনিটে অতিক্রম করে। তাদের গতির অনুপাত হলো
A3 : 2
B4 : 9
C9 : 4
D2 : 3
Answer & Solution
Correct answer: D. 2 : 3
গতি সময়ের সাথে ব্যস্তানুপাতিকভাবে পরিবর্তিত হয়, সুতরাং A : B = 30 : 45 = 2 : 3।
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