Continue with your mobile number
Sol. The term Black Hole was first used by physicist John A. Wheeler in 1967. A black hole is a region in space where gravity is so strong that even light cannot escape. Information Booster:
A person covers the first 288 km at a speed of 64 km/h, then travels the next 220 km at a speed of 40 km/h, and finally completes the remaining 288 km ...
A is cycling at an average speed of 11 km/hr such that he can reach a certain point at 12 noon. If he cycles at 22 km/hr, then he will reach the destina...
The speeds of Arun and Bhanu are in the ratio of 3:4, respectively. Both begin their journey simultaneously to cover a distance o...
If a man cycles at 10 km/hr, then he arrives at a certain place at 1 p.m .If he cycles at 15 km/hr, he will arrive at the same place at 11 am At what sp...
Paras starts chasing a Vipin, 5 hours after the Vipin starts running. Paras takes 6 hours to catch the Vipin. If the average speed of the Paras is 22 km...
In a 2000-metre race, 'Aarav' beats 'Dev' by '400' metres and 'Ishaan' by '600' metres. If 'Dev' and 'Ishaan' participate in an 800-metre race, and 'Ish...
Rahul travels a certain distance with a constant speed of 18 km/h and reaches 3 hours late. If he had travelled at a constant spe...
Samantha travels to her college at 6 km/h and returns at 4 km/h. If her total travel time is 7 hours and 30 minutes, what is the distance between her ho...
A car travels from point A to point B in 4 hours, covering a distance of 180 km. On the return journey, the speed is reduced by 20%. How much time does ...
X started to run from point ‘A’ to ‘B’ at a speed of 22 km/hr at 9:00 am and Y started to run from point ‘B’ to ‘A’ at a speed of 23 km/...