Quantitative Aptitude - Arithmetic Ability Questions

The height of a cone is 45 cm. It is cut at a height of 15 cm from its base by a plane parallel to its base. If the volume of the smaller cone is 18480 cm3, then what is the volume (in cm3) of the original cone?

Two numbers are in the ratio 2:5 and their HCF is 18. Their LCM is

If (4a-3)2=0,then the value of 64a3+12a+13 is

What is the value of tan 7π/6?

What will be the net discount percentage of three successive discounts of 20%, 10% and 30%?

What is the rate of interest (in %) if simple interest earned on a certain sum for the 3rd year is Rs 2,000 and compound interest earned in 2 years is Rs 4,160?

At 10% discount the selling price of a toaster is Rs 18000, what is the selling price if the discount is 37.5%?

If Sec θ = 5/3, then what is the value of Cosec θ?