Quantitative Aptitude - Arithmetic Ability Questions

Which of the following is a Pythagorean triplet?

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

If the angles of a triangle are in the ratio of 2 : 5 : 8, then find the value of the largest angle.

The external and the internal radii of a hollow right circular cylinder of height 15 cm are 6.75 cm and 5.25 cm respectively. If it is melted to form a solid cylinder of height half of the orignal cylinder, then the radius of the solid cylinder is

The length and breadth of a rectangle are 15 cm and 8 cm respectively. Find its area (in cm2)

ΔABC is similar to ΔDEF. If the ratio of similar sides is K:1, the ratio of their areas is

If tan (5x ­- 10°) = cot (5y + 20°), then the value of x + y is

What is the effective discount (in %) on two successive discounts of 20% and 10%?