Quantitative Aptitude - Arithmetic Ability Questions

The height of an equilateral triangle is 18 cm. Its area is

A, B and C are three points on a circle with centre O. The tangent at C meets BA produced at T. If ∠ATC = 30° and ∠ACT = 48°,then what is the value of ∠AOB ?

What is the simplified value of [2/(cot A – tan A)]?

Speed of a boat along and against the current are 14 kms/hr and 8 kms/hr respectively. The speed of the current is

When a discount of 25% is given on a box of popcorn, the profit is 25%. If the discount is 10%, then the profit is

The sum of the ages of husband and wife at present is 56. Ten years ago the product of their ages was 320. What is the age of the husband and the wife?

Naveen purchased a gas cylinder and a stove for Rs.4500. He sold the gas cylinder at a gain of 25% and the stove at a loss of 20%, still gaining 4% on the whole. Find the cost of the gas cylinder.

The average height of 30 boys out of a class of 50 is 160 cm. If the average height of the remaining boys is 165 cm, the average height of the whole class (in cm) is: