Quantitative Aptitude - Arithmetic Ability Questions

Karan, Arjun, Preeti, Priya and Ashish are travelling in a car. Three years ago, the average age of Arjun, Preeti and Priya was 42 years. If the present age of Karan is 65 years and the present average age of all five is 50 years, then what is the present age of Ashish?

If 169 is subtracted from the square of a number, then the result obtained is 7056. What is the number?

A wooden bowl is in shape of a hollow hemisphere of internal radius 7 cm and thickness 1 cm. What is the total surface area (in sq.cm) of the bowl? (Take:  = 22/7)

Calculate the area (in cm2) of a circle of radius 17.5 cm.

If cosx.cosy + sinx.siny = -1 then cosx + cosy is

If cos 45° - ­ sec 30° = x, then value of x is

The line passing through (-2,5) and (6,b) is perpendicular to the line 20x + 5y = 3. Find b?

Two labourers A and B are paid a total of Rs 650 per day. If A is paid 160 percent of what is paid to B, how much (in Rs) is B paid?