An athlete claimed that his timing for a 100 m dash should be corrected because the starting signal was gives by a gun f…

The diameter of each wheel of car is 70 cm. If each wheel rotates 400 times per minutes, then the speed of the car (in k…

A man covered a certain distance at some speed. Had he moved 3 kmph faster, he would have taken 40 minutes less. If he h…

A motor car does a journey in 17.5 hours, covering the first half at 30 km/h and the second half at 40 km/h. Find the di…

A thief steals a car at 2.30 pm and drives it at 60 kmph. The theft is discovered at 3 pm and the owner sets off in anot…

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

A man travelled a distance of 72 km in 12 hours. He travelled partly on foot at 5 km/hr and partly on bicycle at 10 km/h…

A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km o…