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$90$ km/hr গতিবেগকে মিটার প্রতি সেকেন্ডে (m/s) রূপান্তর করুন।

A$18$ m/s
B$22.5$ m/s
C$25$ m/s
D$27$ m/s
Answer & Solution
Correct answer: C. $25$ m/s
km/hr-কে $\dfrac{5}{18}$ দিয়ে গুণ করুন: $90 \times \dfrac{5}{18} = 25$ m/s।
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