Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd letter/letters from the given alternatives.

If n + n2 + n4 + n8 = 45, then find the value of 'n' which will satisfy the equation.

If a rod of length 208 45 is cut into equal pieces of length 23 15 then the total number of rods obtained is

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

In the following question, select the odd letter/letters from the given alternatives.

How many diagonals are there in octagon?

If cos(A-B) - cos(A+B) = x, then the value of x is

Δ XYZ is right angled at Y. If m∠Z = 30°. What is the length of YZ (in cm), if ZX = 9 cm?