Quantitative Aptitude - Arithmetic Ability Questions

If 2sec2x - tan2x = 5 and 0° ≤ x ≤ 90°, then x = ?

The length of one side and the diagonal of a rectangle are 8 cm and 17 cm respectively. Find its area (in cm2).

An arc of 30° in one circle is double an arc in a second circle, the radius of which is three times the radius of the first. Then the angles subtended by the arc of the second circle at its centre is

Which of the following condition is True about the similarity of triangle ABC & DEF given below?

The mean of the data 3, 10, 10, 4, 7, 10, 5 is

ABCD is a cyclic trapezium in which AD || BC. If ∠ABC = 70°, then ∠BCD is

One of four words is a class of which the other three belong. Identify the class.

Find the odd one out.