The tank-full petrol in Arun's motor-cycle lasts for 10 days. If he starts using 25% more every day, how many days will the tank-full petrol last?
Explanation & Solution
Correct Option: (D) 8
Original daily usage = x, Total petrol = 10x. New daily usage = 1.25x. New duration = 10x/1.25x = 8 days.
हिंदी में प्रश्न एवं आदर्श उत्तर
The tank-full petrol in Arun's motor-cycle lasts for 10 days. If he starts using 25% more every day, how many days will the tank-full petrol last?
सही उत्तर: (D) 8
Original daily usage = x, Total petrol = 10x. New daily usage = 1.25x. New duration = 10x/1.25x = 8 days.