Quantitative Aptitude - Arithmetic Ability Questions

The number of solutions of the pair of linear equations x + 2y - 8 = 0 and 2x + 4y = 16 is

Find out the odd word/letters/number/number pair from the given alternatives.

D and E are points on the sides AB and AC respectively of ΔABC such that DE is parallel to BC and AD:DB = 4:5, CD and BE intersect each other at F. Then the ratio of the areas of ΔDEF and ΔCBF

Slope of the line AB is -2/3. Co-ordinates of points A and B are (x , -3) and (5 , 2) respectively. What is the value of x?

The value of 122 + 345 - 3 / 1116 x 372 is

2sin[(C+D)/2].cos[(C­-D)/2] is equal to

The two sides holding the right-angle in a right-angled triangle are 3 cm and 4 cm long. The area of its circumcircle will be in sq.cm:

The internal bisectors of ∠Q and ∠R of triangle PQR meet at O. If ∠P = 70°, then what is the measure of ∠QOR (in degrees)?