Quantitative Aptitude - Arithmetic Ability Questions

In an army selection process, the ratio of selected to unselected was 5:1. If 100 less had applied and 20 less selected, the ratio of selected to unselected would have been 6:1. How many candidates had applied for the process?

What will be the value of r2+p2+s2-rp-ps-rs when r = 4, p = 2, s = 8?

In the following question, select the odd word from the given alternatives.

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

A solid brass sphere of radius 2.1 dm is converted into a right circular cylindrical rod of length 7cm. The ratio of total surface areas of the rod to the sphere is

What is the average of all the one digit, two digit and three digit natural numbers?

The marked price of an article is Rs 1200 and retailer gets a discount of 25%. If he sells that article for Rs 1200, then what is the profit percentage of retailer?

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