Quantitative Aptitude - Arithmetic Ability Questions

Find the area (in cm²) of a semi-circle of radius 21 cm.

A hollow hemispherical bowl is made of silver with its outer radius 8 cm and inner radius 4 cm respectively. The bowl is melted to form a solid right circular cone of radius 8 cm. The height of the cone formed is

The S.P of a washing machine is 1 1/3 of its C.P. Find the gain percent.

A regular square pyramid has side of its base 20 cm and height 45 cm is melted and recast into regular triangular pyramids of equilateral base of side 10 cm and height 10√3 cm. What are the total numbers of regular triangular pyramid?

The slope of the line passing through the points (-5,1) and (x,-4) is -5/8. Find x.

The interest on Rs. 1250 for 6 years at the rate of 4% simple interest per annum will be

How many kilometers are there in one metre?

If 3x ­- 1 < 5x + 2 and 3x + 5 < 6 -­ 4x; then x can take which of the following values?