DELHI POLICE QUANT (TIME/DISTANCE/SPEED) QUIZ

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Question 1:

A man driving at $\frac{\text { 3 }}{4}$ of his original speed reaches his destination 20 minutes late than the usual time. Then the usual time is:

Question 2:

A car completes a journey in 6 hours. It covers half the distance at 50 km/hr and the rest at 70 km/hr. The length of the journey is?

Question 3:

With average speed of 40 km/h a train reaches its destination in time. If it goes with an average speed of 35 km/h, it is late by 15 minutes. The total journey is: 

Question 4:

Two cars are moving with speeds $V_{1}, V_{2}$ towards a crossing along two roads. If their distances from the crossing be 40 meters and 50 metres at an instant of time then they do not collide if their speeds are such that:

Question 5:

A certain distance is covered at a certain speed. If half of this distance is covered in double the time, the ratio of the two speeds is:

Question 6:

A tractor can complete its journey in 10 hours at the speed of $36 \mathrm{~km} / \mathrm{hr}$. If the same distance is to be covered in 8 hours, what should be the speed of the tractor?

Question 7:

A man travelled a distance of 44 km in 4 hours. He travelled partly on foot at the speed of 7 km/h and partly on bicycle at the speed of 15 km/h. The distance travelled on bicycle is:

Question 8:

A man travelled from place A to B at 30 km/h and from B to C at 45 km/h. His average speed for the whole journey was 40 km/h. The ratio of distance of AB: BC is:

Question 9:

A train covers a distance of 14 km in 10 min. If its speed is decreased by 4 km/h, then how much time will be taken by it to cover the same distance?

Question 10:

A train covers a distance of 56 km in 40 minutes. If its speed is decreased by 9 km/h, then the time taken by it to cover the distance of 225 km will be: