Quantitative Aptitude - Arithmetic Ability Questions

Find equation of the perpendicular bisector of segment joining the points (2,­6) and (4,0)?

In the given figure, the angle bisectors of B and C of an isosceles triangle intersect at point O. Find the angle BOC (in degree), when ∠ABC = ∠ACB = 75°.

Find the area (in cm²) of a semi-circle of radius 21 cm.

Select the odd word/letters/number/number pair from the given alternatives.

If 1/(1 + cosA) + 1/(1 ­- cosA) = x , then value of x is

Alarms from 3 different clocks sound after every 2, 4 and 6 hours, respectively. If the clocks are startedat the same 6 time, how many times do the alarms ring together in 3 days?

ΔPQR has sides PQ and PR measuring 983 and 893 units respectively. How many such triangles are possible with all integral sides?

What is the diameter (in cm) of a sphere of surface area 154 sq cm?