Quantitative Aptitude - Arithmetic Ability Questions

Expand and simplify (x + 5)2 + (x - 3)2

If sec θ (cos θ + sin θ) = √2, then what is the value of (2 sin θ)/(cos θ – sin θ)?

Select the odd word/letters/number/number pair from the given alternatives.

If a.sin 45°.cos 45°.tan60° = tan 245° ­ cos60° then find the value of a ?

The average weight of 25 bags is 55 kg. The weight of one bag was misread as 65 instead of 56. Find the correct mean value.

A sphere has the same curved surface area as a cone of vertical height 40 cm and radius 30 cm. The radius of the sphere is

Fraction that lies between 2/5 and 4/9 is

The number of students in a class is increased by 20% and the number now becomes 66. Initially the number was