Quantitative Aptitude - Arithmetic Ability Questions

Two trains are moving in the opposite directions at speed of 43 km/h and 51 km/h respectively. The time taken by the slower train to cross a man sitting in the faster train is 9 seconds. What is the length (in metres) of the slower train?

Average of all even numbers between 222 and 250 is __________.

The mean of 20 observations is 19. One more observation is included and the new mean becomes 20. The 21st observation is

A rectangular swimming pool of length 20 m and breadth 10 m has a uniformly sloping floor. It is 1 m in depth on one end of its length and 3 m at the other. How much water is needed to completely fill this pool? (Take π = 22/7)

In Δ ABC, the median AD is 6 cm and CB is 12 cm, measure of angle CAB is

If A : B = 1 : 4 and B : C = 2 : 3, then what is A : B : C?

What is the simplified value of [2/(cot A – tan A)]?

Suresh goes on a trip on his motor-cycle and rides for 410 kms. If he rides for 5 hours at a speed of 50 km/hr, find at what speed he travels for the remaining 4 hours of the journey?