Quantitative Aptitude - Arithmetic Ability Questions

Rakesh’s present age is 36 years. If 12 years ago, Deepak’s age was one-fourth of Rakesh’s age, then after 27 years what will be the age (in years) of Deepak?

If 7A = 5B = 2C; find A : B : C.

If a + b = 4 and ab = 3, then what is the value of a3 + b3?

A bank offers 5% compound interest per half year. A customer deposits Rs. 3200 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is:

The circumference of a circle is 88 cm, find its area?

The length and breadth of a rectangle are 24 cm and 7 cm respectively. What must be the length of its diagonal (in cm)?

The angle of elevation of the top of a tower, vertically erected in the middle of a paddy field, from two points on a horizontal line through the foot of the tower are given to be α and β (α>β). The height of the tower is h unit. A possible distance (in the same unit) between the points is

If (x + y):(x - y) = 11:1, find value of (5x + 3y)/(x - 2y).