Question
A is cycling at an average speed of 48 km/hr such that
he can reach a certain point at 12 noon. If he cycles at 80 km/hr, then he will reach the destination at 10 a.m. At what speed he should cycle to reach the destination at 11 a.m.Solution
Let the distance to be travelled be ‘x’ km Time taken when speed is 48 km/hr = (x/48) hours Time taken when speed is 80 km/hr = (x/80) hours According to the question, (x/48) – (x/80) = 2 Or, 5x – 3x = 2 × 240 Or, x = 240 km Time taken to travel 240 km with speed of 48 km/hr = 240/48 = 5 hours Therefore, he started at 12 – 5 = 7 a.m. Therefore, required speed to reach the destination at 11 a.m. or 4 hours = 240/4 = 60 km/hr
The Earth Hour awareness campaign marking 20 years was organised by MoEFCC in collaboration with which organisation?
What was the theme for Nasha Mukt Bharat Abhiyaan Run on the occasion of international day against drug abuse this year?
Which event aims to promote the efficient utilization of mineral resources through digital solutions in Madhya Pradesh?
- Which team won its third Ranji Trophy title in 2025?
What is the total corpus limit under NPS for which 100% withdrawal is now permitted?
Which major index will include India’s bonds starting from September 2025?
What unique operational capability does DRDO’s new Military Combat Parachute System (MCPS) provide?
Who has been declared as the National Icon of the Election Commission of India?
Two hill ranges Gandachera and Atharamura have been renamed in Kokborok as Ganda Tuisa and Hachuk Berem respectively. These hill ranges are in ______.
Which of the following statements is correct regarding the agreement for cross-border digital payments between Nepal and India?
I. It will allow ...
Relevant for Exams:
