Quantitative Aptitude - Arithmetic Ability Questions

The diameter of a circle is 28 cm find its area?

In ΔDEF measure of angle E is 90°. If cosD = 8/17, and DE = 16cm, then what is the length (in cm) of side DF?

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.

Marked price of a chair is Rs 800 and discount is 15%. What is additional discount (in percentage) should be offered to the customer to bring the price of chair to Rs 578?

If √(1 + cot2A)/cotA = x, then the value of x is

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

The point R(a,b) is first reflected in origin to R1 and R1 is reflected in X-axis to (-5,1). The co-ordinates of point R are?

What is the value of Sin 30° - Cosec 45°?