The Human Development Index (HDI) is a composite statistic of life expectancy, education, and per capita income indicators, which are used to rank countries into four tiers of human development. A country scores higher HDI when the lifespan is higher, the education level is higher, and the GDP per capita is higher.
Two trains start at the same time from Patna and Delhi and proceed toward each other at the speed of 120 km/hr and 60 km/hr respectively. When they meet...
A train 275 metre long takes 33 sec to cross a man running at a speed of 5 km/hr in the direction same to that of train. What is the speed of the train?
100 metre long train ‘A’ can cross a platform of length 50 metres in 20 seconds. If the speed of train ‘B’ is 6 m/s more than that of train ‘A...
Train B which is ‘d’ meter long can cross a pole in 35 seconds. Train A can cross a platform of (d+10) meter long in (t+45) seconds. The ratio betwe...
Two trains A and B, were proceeding in the same direction on parallel tracks at 26 km/hr and 80 km/hr respectively. A man noticed that it took exactly 1...
Two cars start from a place with a speed of 55 km/hr at an interval of 15 minutes. What is the speed of a man coming from the opposite direction towards...
A train 600 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’ running with a speed of 108 km/hr crosses a vertical pole in 16 seconds. Find the approx. time taken by the train ‘A’ ...
Train Q of length 360m can cross a pole in 12sec and it can cross train P running in opposite direction in 100/7 sec. If the speed of train P is 2/5 of ...
Train ‘A’ running with a speed of 45 km/h crosses a pole in 4 seconds. If the time taken by train ‘A’ to cross train ‘B’ running with a spee...