Quantitative Aptitude - Arithmetic Ability Questions

What is the value of 643 × 121289 - 169 ?

Simplify x5 ÷ x43 ÷ x

An angle is smaller than its supplementary by 30°. What is the measure of the angle?

Two circles touch each other at point X. Two common tangents of the circles meet at point P and none of the tangents passes through X. These tangents touch the larger circle at points B and C. If the radius of the larger circle is 15 cm and CP = 20 cm, then what is the radius (in cm) of the smaller circle?

The square root of 3249 is

What smallest number should be added to the sum of squares of 15 and 14, so that the resulting number is a perfect square?

Calculate the difference between the square of the largest and smallest two-digit prime numbers.

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