Quantitative Aptitude - Arithmetic Ability Questions

If the volumes of two right circular cones are in the ratio 1:4 and their diameters of bases in the ratio 4:5, then their heights will be in the ratio:

A prism has a regular hexagonal base with side 6 cm. If the total surface area of prism is 216√3 cm2, then what is the height (in cm) of prism?

A work can be completed by 18 boys in 24 days. If 6 boys leave after working for 12 days, then how many days will be needed to complete the remaining work?

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

What is the perimeter of the sector whose central angle is 60° and radius of the circle is 21 cm?

What is the value of 99992 x 100008?

CAlculate : 72-6-45÷5-72-2×2÷2+2

If x = a + 1a, y = a - 1a ,(a>0), then the value of x4+y4-2x2y2 is