Civil Services Examination · প্রশ্ন 17
The petrol price shot up by 10% as a result of the hike in crude oil prices. The price of petrol before the hike was Rs 90 per litre. A person travels 2200 km every month and his car gives a mileage of 16 km per litre. By how many km should he reduce his travel if he wants to maintain his expenditure at the previous level?
উত্তর দেখান ও ব্যাখ্যা
উত্তর: (B) 200 km
ব্যাখ্যা
Spend = 2200/16 × 90 = Rs 12,375. At Rs 99/litre this buys 125 litres = 2000 km, so he must cut 200 km. (Answer as per the official UPSC answer key.)