Quantitative Aptitude - Arithmetic Ability Questions

(1 + sinA)/(1 - sinA) is equal to?

If A = 30°, B = 60° and C = 135°, then what is the value of sin3A + cos3B + tan3C – 3sin A cos B tan C?

What is the simplified value of (1– sin A cos A)(sin A + cos A)?

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 the length of the side of an equilateral triangle is 8 cm, what is its area?

P is a point outside the circle at distance of 6.5 cm from centre O of the circle. PR be a secant such that it intersects the circle at Q and R. If PQ = 4.5 cm and QR = 3.5 cm, then what is the radius (in cm) of the circle?

Cost price of 28 articles is equal to Sale price of 21 articles, then percentage of profit is

A number is greater than five times its reciprocal by 19/2. Find the number.