Quantitative Aptitude - Arithmetic Ability Questions

When a number is increased by 20, it becomes 116% of itself. What is the number?

A sum fetched a total simple interest of Rs.5,400 at the rate of 12.5 %/yr in 4 years. What is the sum (in Rs)?

The length of the diagonal of a square is 14 cm. What is area of this square?

A tower stands on the top of a building which is 40 metres high. The angle of depression of a point situated on the ground from the top and bottom of the tower are found to be 60 and 45 deg respectively. What is the height (in metres) of tower?

If 2x + (9/x) = 9, then what is the minimum value of x2+1x2 = ?

Two spheres of equal radius are taken out by cutting from a solid cube of side (12 + 4√3) cm. What is the maximum volume (in cm3) of each sphere?

Sum of lengths of all edges of a cube is 84 cm, find its volume?

A shopkeeper by selling 5 items, earns a profit equal to the selling price of 1 item. What is his profit percentage?