Quantitative Aptitude - Arithmetic Ability Questions

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

Select the odd number from the given alternatives.

The length of one side and the diagonal of a rectangle are 5 cm and 13 cm respectively. Find its area (in cm2).

Reflection of the point (3,-6) in the y-axis is

What is the value of cos 4π/3?

Find equation of the perpendicular bisector of segment joining the points (2,-5) and (0,7)?

­ A wooden bowl is in shape of a hollow hemisphere of internal radius 8 cm and thickness 1 cm. Find the total surface area of the bowl?

A student, by mistake, wrote 64 in place of 46 as a number at the time of finding the average of 10 given numbers & got the average as 50. The correct average of the numbers is