Quantitative Aptitude - Arithmetic Ability Questions

In a week, how many times are the hands of a clock at right angles with each other?

The co-ordinates of the centroid of a triangle ABC are (1 , -4). What are the co-ordinates of vertex C if co-ordinates of A and B are (3 , -4) and (0 , 5) respectively?

In a Rhombus ABCD, measure of angle CAB is 25°, what is the measure of angle ABC?

An engineering student has to secure 25% marks to pass. He gets 45 and fails by 45 marks. Find the maximum marks.

ΔXYZ is similar to ΔPQR. If ratio of Perimeter of ΔXYZ and Perimeter of ΔPQR is 4:9 and if PQ = 27 cm, then what is the length of XY (in cm)?

If a3+1a3 = 2, then the value of a2+1a?

If Sumita earns 75/4% more than her boyfriend, find the approximate % her boyfriend earns less than Sunita.

What is the value of sec 30° + cot 30°?