Quantitative Aptitude - Arithmetic Ability Questions

If cot(A/2) = x, then the value of x is

Choose the word is least like the other words in the group

Find out the odd word/letters/number/number pair from the given alternatives.

A cuboid has dimensions 8 cm x 10 cm x 12 cm. It is cut into small cubes of side 2 cm. What is the percentage increase in the total surface area?

∆ABC is right angled at B. BD is an altitude. AD = 4 cm and DC = 9 cm. What is the value of BD (in cm)?

Chandan is 2 years older than Ankit but 1 year younger than Sumit. Ankit is twice as old as Khushboo. If Khushboo's age is 25 years, what is the age (in years) of Sumit?

There are 8 equidistant points A, B, C, D, E, F, G and H (in same order) on a circle. What is the value of ∠FDH (in degrees)?

If 1/2 is added to a number and the sum is multipled by 3, the result is 21. Then the number is