Question
A car travels 240 km in 4 hours. After 2 hours, it
increases its speed by 20 km/h and covers the remaining distance in 1 hour. What is the speed of the car in the first 2 hours?Solution
Let the speed of the car in the first 2 hours be x km/h. Distance traveled in the first 2 hours = 2x After 2 hours, the car increases its speed by 20 km/h. The speed during the next 1 hour = (x + 20) km/h. Distance traveled in the next hour = (x + 20) km. The remaining distance is covered in the last hour, so 2x + (x + 20) = 240 km 3x + 20 = 240 3x = 220 x = 220 / 3 = 73.33 km/h Correct Option: c) 73.33 km/h
Turtle Rehabiliation Scheme was implemented in 1987, under which of the following plans ............... .
How many ministers are part of the new government under Germany’s Chancellor Friedrich Merz?
Who has issued the guidelines on the import of gold by Tariff Rate Quota (TRQ) holders under the India-UAE Comprehensive Economic Partnership Agreement ...
What does the term 'Saharana' refer to in the context of the Sahariya Tribe?
In which of the Himalayan valleys, Shipki-La pass is located?
Which of the following companies had planned to open the World largest carbon fibre plant?
In which state is the 'Hampi Dance Festival' celebrated?
The first female Chief Minister of Uttar Pradesh is?
The State Logo of Uttar Pradesh does not have -
E governance conference held in Jan 2022, organised in which of the following city ?
Relevant for Exams:
