Quantitative Aptitude - Arithmetic Ability Questions

What is the value of 1/√2 Cot 30° + 1/√3 Cosec 60°?

If x + y = 10 and xy = 4, then what is the value of x4 + y4?

A train 240 meters in length crosses a telegraph post in 16 seconds. The speed of the train is?

PQRS is a square whose side is 16 cm. What is the value of the side (in cm) of the largest regular octagon that can be cut from the given square?

The ratio of present ages of Raman and Lamba is 7 : 5. After 6 years age of Raman will be 48 years. What is the present age (in years) of Lamba?

A missile travels at 1260 km/h. How many metres does it travel in one second?

Rehman goes on a trip on his motor-cycle and rides for 661 kms. If he rides for 8 hours at a speed of 31 km/hr, find at what speed he travels for the remaining 7 hours of the journey?

The ratio 1 : 5 can be expressed in decimal as