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The redshift phenomenon is observed when light from distant galaxies shifts towards the red end of the spectrum, indicating that galaxies are moving away from each other. This provides evidence for the expanding universe theory.
‘A’ and ‘B’ started moving towards each other at same time with a speed of 25 km/hr and 15 km/hr, respectively. If the distance covered by ‘Aâ...
Buses start from a bus terminal with a speed of 10 km/hr at intervals of 8 minutes. What is the speed of a boy coming from the opposite direction toward...
A mother left her child at Bus stop 'P' in a bus station at 6:00 a.m. Four hours later, a bus departed from Bus stop 'Q' to Bus stop 'P' and passed the ...
Two trains starts at the same time from Spain and France towards each other with a speed of 160km/hr and 190 km/hr. When they meet, the faster train cov...
Excluding the Stoppages i.e. Non-stop, the speed of a Bullet train is 810 km/h and including the stoppages, it is 720 km/h. Calculate for how many minut...
A bus covers a certain distance without stopping at an average speed of 50 km/h. But when it covers the distance intermittently. So its average speed is...
A car running with a speed of 65 km/hr takes 12 hours to go from 'A' to 'B'. If on the way back from 'B' to 'A', the car takes 20% less time than it tak...
A car travels at a speed of 90 km/h and takes 4.5 hours to cover a specific distance. A train can cover the same distance in 3 hours. If the speed of th...
Anju's journey comprises three segments. He travels the first 'd - 30' km at a speed of 12 km/h, the next 'd' km at a speed of 30 km/h, and finally, she...
A train covers a certain distance at a speed of 36 km/h and the next same distance with a speed of 45 km/h and the next same distance with a speed of 60...
