Quantitative Aptitude - Arithmetic Ability Questions

Present age of Vikas and Raman are in the ratio of 6 : 5 respectively. If the present age of Rohan is 98 years and the present age of Vikas is 3/7 of the the present age of Rohan, then after how many years the ages of Vikas and Raman would be in the ratio of 7 : 6?

P + Q = 2(P-Q). If Q = 10, what is the value of P?

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

If the edge of a cube is increased by 2 cm, the volume will increase by 488 cub.cm. What then will be the length of each edge of the cube?

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

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

Solve : 1000x - 5 = -6

A tent is to be built in the form of a cylinder of radius 7 m surmounted by a cone of the same radius. If the height of the cylindrical part is 8 m and slant height of the conical part is 12 m, how much canvas will be required to build the tent? Allow 20% extra canvas for folding and stitching. (Take π = 22/7)