Quantitative Aptitude - Arithmetic Ability Questions

A circle has its centre at O . A tangent drawn from a point P , which is situated outside the circle, touches the circle at A. If PA = 4 cm & PO=5 cm, then the length of the radius of the circle is

Manish lent out Rs 20000 in two parts. He put out first part at 6% and the second part at 8% interest. The yearly average interest comes out to be 6.4%.What are the amounts (in Rs) that were lent at 6% and 8% respectively?

If the angles of a triangle are in the ratio of 2:3:4, then the difference of the measure of greatest angle and smallest angle is

When n is divided by 4, the remainder is 3. The remainder when 2n is divided by 4 is:

What are the components of X6 - X4 - X5 - X4 + X2 - 4?

The area of the triangle whose vertices are given by (2,4), (-3,-1) and (5,3) is

What is the slope of the line 2x + 3y = 12?

The external and the internal radii of a hollow right circular cylinder of height 15 cm are 6.75 cm and 5.25 cm respectively. If it is melted to form a solid cylinder of height half of the orignal cylinder, then the radius of the solid cylinder is