Quantitative Aptitude - Arithmetic Ability Questions

The angle of elevation of an aeroplane from a point on the ground is 45°. After flying for 15 seconds, the elevation changes to 30°. If the aeroplane is flying at a height of 2500 metres, then the speed of the aeroplane in km/hr. is

The height of a light house is 20 mts above sea level. The angle of depression (from the top of the lighthouse) of a ship in the sea is 30 deg. What is the distance of the ship from the foot of the light house?

By what least number should 1200 be multiplied so that it becomes a perfect square?

The LCM of 48 and 54 is

Find the volume (in cm3) of a right circular cylinder of diameter 42 cm and height 14 cm.

1.004 - 0.4 is equal to

The square root of 4096 is

The length of the diameter of the circle is 10 cm and length of the chord drawn in a circle is 6 cm. Find the distance (in cm) of chord from the center.