Quantitative Aptitude - Arithmetic Ability Questions

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 (x + y)/z = 2, then what is the value of [y/(y – z)] + [x/(x – z)]?

What is the total surface area (in sq cm) of a hollow cylinder open at both ends, if its length is 22 cm, external radius is 7 cm and thickness is 1 cm? (Take π = 22/7)

What is the reflection of the point (1 , 2) in the line y = 3?

Two circles touch each other internally. The radius of the larger circle is 6 cm and the distance between the centre is 2 cm, then the radius (in cms) of the other circle is

If 5x + 4(1 -­ x) > 3x - ­4 > 5x/3 -­ x/3; then x can take which of the following values?

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