The consumption of diesel per hour of a bus varies directly as square of its speed. When the bus is travelling at 50 kmph its consumption is 1 litre per hour. if each litre costs $50 and other expenses per hous is $ 50, then what would be the minimum expenditure required to cover a distance of 500 Km?	Answers
A) 800
B) 950
C) 900
D) 1000
E) 1250
50 kmph consumption is 1 lt/hr   so 500 km will take 10 hrs and the consumption is 10 lt for entire distance.   1 lt costs $50   so 10 lt costs $500   extra expenses for 1 hr - $50   10 hrs - $500   total expense - $500 + $500 = $1000   Answer : 1000
<result>D</result>
The consumption of diesel per hour of a bus varies directly as square of its speed. When the bus is travelling at 50 kmph its consumption is 1 litre per hour. if each litre costs $50 and other expenses per hous is $ 50, then what would be the minimum expenditure required to cover a distance of 500 Km?