Quantitative Aptitude - Arithmetic Ability Questions

The value of x for which the expressions 15x + 4 and 13x - 2 become equal is ______

Given: 5x -3(2x-7) > 3x - 1 < 7 + 4x; then x can take which of the following values?

If [a + (1/a)]2 – 2[a – (1/a)] = 12, then which of the following is a value of 'a'?

What is the value of tan 6° tan 36° tan 84° tan 54° tan 45°?

Expand and simplify (x + 4)2 + (x -­ 2)2

A tetrahedron has 4 vertices. How many edges does it have?

If angles of a quadrilateral are in the ratio 3:5:9:13, find the largest angle?

The area of a circle is 346.5 cm². Find its radius (in cm).