Quantitative Aptitude - Arithmetic Ability Questions

The point at which the perpendicular bisectors of the sides of a triangle intersect is known as _____________________

If 2cosAsinB = x, then the value of x is?

If 40 is 0.05% of x, then what is the value of x?

The sum of a non-zero number and its reciprocal is 2. What is the number?

A boat covers 143 km upstream in 13 hours and the same distance downstream in 11 hours. What is the speed (in km/hr) of the boat in still water?

In the following question, select the odd letter/letters from the given alternatives.

The value of (1 - √2) + (√2 - √3) + (√3 - √4) + ..... + (√15 - √16) is

The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The 15th observation is