Quantitative Aptitude - Arithmetic Ability Questions

Find co-ordinates of the mid point of the segment joining points C (3,-5) and D (-7,3).

Area of _____ equals half the product of its diagonal.

A discount of 45% on an article is equal to the discount of 65% on other article. What is the respective ratio of the marked price of both the articles?

If x = 93 , y = 93 , z = 94 then the value of x2 - y2 + 10xz + 10yz is

If sec2θ+tan2θ=3, then sec4θ-tan4θ =

If -3/2 + (2/3)(3x + 9) = x/2, then what is the value of x?

What is the value of 1sin490-θ+1cos290-θ - 1 ?

What will be the roots of the quadratic equation x2 - 25x + 156 = 0?