Quantitative Aptitude - Arithmetic Ability Questions

A thief is stopped by a policeman from a distance of 450 metres. When the policeman starts the chase, the thief also starts running. Assuming the speed of the thief as 7 km/h and that of policeman as 12 km/h, how far the thief would have run, before he is over­ taken?

A can do a piece of work in 20 days and B in 15 days. With help of C, they finish the work in 5 days. C can alone do the work in

A plane flies a distance of 1800 km in 5 hours. What is its average speed in meters/second?

A bus travels 720 km in 20 hours. Calculate its average speed in meters/second.

Raj takes 2 1/3 hrs to complete a certain distance at a speed of 51 kmph. What time would Kiran take to complete the same distance at a speed of 68kmph?

In a match, average of runs scored by 7 players is 53. If the runs scored by 6 players are 121, 40, 26, 56, 37 and 48, then how many runs did the 7th player scored?

A student has to secure 40% marks to pass. He gets 67 and fails by 13 marks. What is the maximum marks?

If a – b = 11 and ab = 24, then value of a2 + b2 is