Quantitative Aptitude - Arithmetic Ability Questions

The sum of a non-zero number and ten times its reciprocal is 7. Find the number.

At what rate of compound interest (in %) per annum will a sum of Rs. 15,000 become Rs. 18,150 in 2 years?

When a discount of Rs. 42 is allowed on the marked price of an article, the new reduced price becomes 86% of the original price. Find the marked price.

The ratio of the heights of Nani and Leelu is 4 : 3. If Leelu is 1.2 m tall, then what is the height of Nani?

Two men standing on same side of a pillar 75 metre high, observe the angles of elevation of the top of the pillar to be 30° and 60° respectively the distance between two men is

What is the value of [(sin 7x – sin 5x)÷(cos 7x + cos 5x)] – [(cos 6x – cos 4x)÷(sin 6x + sin 4x)]?

If a - b = -6 and a2 + b2 = 44, then ab is

Calculate the angle subtended by the chord at the point on the major arc if the radius and the chord of the circle are equal in length.