Quantitative Aptitude - Arithmetic Ability Questions

The length of a side of an equilateral triangle is 8 cm. The area of the region lying between the circum circle and the incircle of the triangle is (use: π = 22/7)

At what rate of compound interest per annum will a sum of Rs 20000 become Rs 25088 in 2 years?

If sec (4x - 50°) = cosec(50° - x), Then the value of x is

PQ is a tangent to the circle at T. If TR = TS where R and S are points on the circle and ∠RST = 65°, the ∠PTS =

At 10% discount the selling price of an article is Rs 4500, what is the selling price (in Rs) if the discount is 27.5%?

If two successive discounts of 50% and 10% are offered, then what is the net discount (in %)?

What is the value of √121 + √12321 + √1234321 + √123454321?

Anil can do a piece of work in 14 days which Rohit can do in 21 days. They worked together for few days after which Anil left. If Rohit worked alone for 3 days, find the total number of days it took to complete the whole work.