Quantitative Aptitude - Arithmetic Ability Questions

If cos2x + cos4x = 1, then tan2x + tan4x =

If sinA + sin2A =1 then what is the value of cos2A + cos4A

The measures of the four angles of a quadilateral are in the ratio 3:4:5:6. What is the measure of the biggest angle?

If the perimeter of a semicircle is 108 cm, then find its area (in cm²).

If tan4θ + tan2θ = 1 then the value of cos4θ + cos2θ is

The first and last terms of an arithmetic progression are 25 and ­52. What is the sum of the series if it has 12 terms?

If 2 shirts are offered free on purchase of 3 shirts priced Rs 600 each, then what will be the effective discount on each shirt?

What is the area (in sq cm) of a rhombus if the lengths of the diagonals are 12 cm and 14 cm?