A bus uses one gallon of petrol to travel 15 km. After a tune-up, the bus travels 15% farther on one gallon. How many gallons of petrol will it take for the bus to travel 150 km after a tune-up?
A. 8.5
B. 8.7
C. 8.9
D. 9.0
সঠিক উত্তরঃ
B.
8.7
Explanation:
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