Task: Question Answering
Input (English): Problem: the consumption of diesel per hour of a bus varies directly as square of its speed . when the bus is travelling at 70 kmph its consumption is 1 litre per hour . if each litre costs $ 70 and other expenses per hous is $ 70 , then what would be the minimum expenditure required to cover a distance of 700 km ? 
Options: a ) 1000 , b ) 1500 , c ) 1240 , d ) 1630 , e ) 1400
Output (English): e