Quantitative Aptitude - Arithmetic Ability Questions

A right circular solid cylinder has radius of base 7 cm and height is 28 cm. It is melted to form a cuboid such that the ratio of its side is 2 : 3 : 6. What is the total surface area (in cm2) cuboid?

The addition of a rational number and its reciprocal is 61/30. Calculate the number.

4 hrs after a goods train passed a station, another train travelling at a speed of 60 km/hr following that goods train passed through that station. If after passing the station the train overtakes the goods train in 8 hours. What is the speed of the goods train?

A and B together can do a piece of work in 36 days, B and C together can do it in 24 days. A and C together can do it in 18 days. The three working together can finish the work in

Find the radius of the circle if the length of its arc is 33 cm whose corresponding central angle is 90° ?

If (1 -­ cosA)/(1 + cosA) = x, then the value of x is

Anuj runs 1 2/3 laps of 7 laps race, find the remaining laps to be run.

What is the value of ( 1/2 - cot45) ?