Quantitative Aptitude - Arithmetic Ability Questions

Which of the following is equivalent to 0.565656...?

The value of sec2θ + 2tanθcotθ - tan2θ is

If X and Y are the two digits of the number 347XY such that the number is completely divisible by 80, then what is the value of X + Y?

AD is the Median of Δ ABC. If O is the centroid and AO = 10 cm then OD is

The median of the numbers 4, 2, 2, 6, 3 and 8 is

The value of √0.0144 is

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

Find the total surface area (in cm2) of a right circular cone of diameter 21 cm and slant height 11 cm.