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
What is the height of Mt. K2?
The General Provident Fund (GPF) interest rate for October-December 2024 was kept unchanged at:
Who will host the 2028 Summer Olympics?
The Neemrana Industrial Zone in Rajasthan is also known as _____ zone?
What was the AMRUT scheme previously called?
Which village in Maharashtra was the first to be fully powered by solar energy under the Solar Village Scheme?
All noble gases are ?
The 'Abolition of Titles' is a fundamental right classified under:
Who became the winner of Lance Pannell-Pacific International Snooker Championship 2022?
At which place has the Eklavya Model Residential School been approved by the Ministry of Tribal Affairs, Government of India for the financial year 2021...
Relevant for Exams:
