Quantitative Aptitude - Arithmetic Ability Questions

The ratio of present ages of Anil and Aakash is 4 : 5. Three years later their ages will be in ratio 7 : 8. What is the present age (in years) of Anil?

The ratio of present ages of Ranjini and Shahid is 5:4. After 13 years the ratio of their ages will be 6:5. What is Ranjini's present age?

A circle and a square have same area. The ratio of the side of the square to the radius of the circle will be:

If the time increases by 7 years, then simple interest increases by Rs 8400 on a sum of Rs 6000. What is the rate (in percentage) of interest per annum?

Two identical hemispheres of maximum possible size are cut from a solid cube of side 14 cm. The bases of the hemispheres are part of the two opposite faces of cube. What is the total volume (in cm3) of the remaining part of the cube?

If the perimeter of a semicircle is 36 cm, then find its area (in cm2).

If cos 27° = x, the value of tan 63° is

If [a + (1/a)]2 – 2[a – (1/a)] = 12, then which of the following is a value of 'a'?