Quantitative Aptitude - Arithmetic Ability Questions

Find the total surface area (in cm2 ) of a hemisphere of diameter 42 cm.

The difference between the place values of 9 and 5 in the number 428693745 is

Which one of the following is the minimum value of the sum of two integers whose product is 24?

If a+1a=2 then the vealue of a5+1a5 will be

One diagonal of a rhombus is half the other. If the length of the side of the rhombus is 20 cm, what is the area of the rhombus?

What is the value of (cot60 + 1/√3) ?

The line passing through (­3,4) and (0,3) is perpendicular to the line passing through (5,7) and (4,x). What is the value of x?

The sum of a fraction and 3 times its reciprocal is 37/10. What is the fraction?