The driver of an ambulance sees a school bus 40 m ahead of him after 20 seconds, the school bus is 60 meter behind. If t…

Two guns are fired from the same place at an interval of 6 minutes. A person approaching the place observes that 5 minut…

Which of the following trains is the fastest ?

A train passes two persons walking in the same direction at a speed of 3 kmph and 5 kmph respectively in 10 seconds and …

Two runner start running together for a certain distance, one at 5 km/h and another at 8 km/h. The former arrives one an…

Jane travelled $$\frac{4}{7}$$ as many miles on foot as by water and $$\frac{2}{5}$$ as many miles on horseback as by wa…

Two planes move along a circle of circumference 1.2 km with constant speeds. When they move in different directions, the…

Two persons A and B started from two different places towards each other. If the ratio of their speed be 3 : 5, then wha…