Quantitative Aptitude - Arithmetic Ability Questions

If 2x+13x = 5, the value of 5x6x2+20x+1 is

If Cos θ = 5/13, then Cosec θ = ?

If x2 – 16x – 59 = 0, then what is the value of (x – 6)2 + [1/(x – 6)2]?

PAB and PCD are two secants to a circle. If PA = 10 cm, AB = 12 cm and PC = 11 cm, then what is the value (in cm) of PD?

A solid sphere of radius 3 cm is melted to form a hollow right circular cylindrical tube of length 4 cm and external radius 5 cm. The thickness of the tube is

Find the area (in cm2) of a semi-circle of radius 28 cm.

The bus fare between two cities is increased in the ratio 29:31. What is the increase in the fare, if the original fare is Rs 725

Four pairs of words are given. Find the odd one out.