Quantitative Aptitude - Arithmetic Ability Questions

The surface area of a sphere is 2464 cm². Find its diameter (in cm).

In a triangle the length of the side opposite the right angle is 6 cm, what is the length of the side opposite to the angle which measures 30°?

The midpoints of AB and AC of a triangle ABC are X and Y respectively. If BC+XY=12 units, then BC­XY is

1.1 + 12.12 + 123.123 = ?

A car takes 5 hours to cover 100 kms distance at a particular speed whereas another car takes 3 hours to reach a particular distance at the same speed. Find the distance.

If the angles of a triangle are in the ratio of 2 : 5 : 8, then find the value of the largest angle.

What will come in the place of the question mark (?) in the following number series?305, 338, 404, 503, 635 , (?)

What is the sum of the first 12 terms of an arithmetic progression if the first term is -19 and last term is 36?