Quantitative Aptitude - Arithmetic Ability Questions

ΔXYZ is similar to ΔPQR. If ratio of Perimeter of ΔXYZ and Perimeter of ΔPQR is 4:9 and if PQ = 27 cm, then what is the length of XY (in cm)?

Find the curved surface area (in cm2) of a right circular cylinder of diameter 28 cm and height 12 cm.

A regular hexagonal base prism has height 8 cm and side of base is 4 cm. What is the total surface area (in cm2) of the prism?

If Sinθ = √3/2 and 0°<θ<90°, then the value of tan(θ-15°) is

The profit (in Rs.) after selling an article for Rs.524 is the same as the loss (in Rs.) after selling it for Rs.452. The cost price of the article is:

There are two numbers such that the first number is half of the second number. If their average is 57, then what is the first number?

If cos 135° = x, then the value of x is

What is the value of (cos 45 - 1/3) ?