A 45,000 liter water tank is to filled at the rate 220 liters per minute. Estimates to the nearest half hour, how long it will take to fill the tank?
A. 4 hours
B. 3.5 hours
C. 3 hours
D. 2.5 hours
সঠিক উত্তরঃ
B.
3.5 hours
Explanation:
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