Question
Fireflies light up due to the activity of the following
chemicalSolution
Fireflies light up due to the action of the enzyme luciferase, which combines luciferin and oxygen to make oxyluciferin.
A train travelling with a speed of 108 km/h can cross a pole in 9 seconds. Find the time taken by the train to cross a 330 metres long platform if the s...
Two express trains depart from city X and city Y at the same time, approaching one another. Train X moves at 90 km/h and Train Y at 60 km/h. They cross ...
A train travelling at the speed of 72 km/hr crosses another train, having 40 meters less length and travelling in opposite direction at the speed of 54 ...
A train 450 metres long is running at a speed of 54 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is:
Train 'A' takes 36 seconds to pass a boy standing on a platform, moving at a speed of 15 m/sec. The speeds of trains 'A' and 'B' are in the ratio of 5:6...
Two trains, 'P' and 'Q', begin their journey from stations 'A' and 'B' at the same time, heading towards each other. The total distance between stations...
Two trains of equal lengths take 15 seconds and 30 seconds respectively to cross a telegraph post. If the length of each train be 180 metres, in what ti...
Two trains of equal lengths take 15 seconds and 30 seconds respectively to cross a telegraph post. If the length of each train be 120 metres, in what ti...
Ratio of the lengths of two trains ‘X’ and ‘Y’ is 6:7 respectively and the ratio of time taken by them to cross a pole is 4:5 respectively. If s...
Two trains start at the same time from Dehradun and Jaipur and proceed toward each other at the speed of 55 km/hr and 25 km/hr respectively. When they m...
Relevant for Exams:
