alleryএকজন দৌড়বিদ 25 m/s গতিবেগে দৌড়ান। km/h-এ এটি কত?
A90 km/h
B100 km/h
C75 km/h
D81 km/h
Answer & Solution
Correct answer: A. 90 km/h
metres per second-কে 3.6 দিয়ে গুণ করলে পাওয়া যায় 25 x 3.6 = 90 km/h।
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