Quantitative Aptitude - Arithmetic Ability Questions

Two numbers are 40% and 80% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

A wholesaler sells a watch to a retailer at a gain of 20% and the retailer sells it to a customer at a loss of 10%. If the customer pays Rs 874.8, what had it cost the wholesaler?

If Cos θ = 35/37 , then what is the value of Cot θ?

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

The area of the circle with radius Y is W. The difference between the areas of the bigger circle (with radius Y) and that of the smaller circle (with radius X) is W'. So x/y is equal to

Find the value of 200 x 20 x 2 x 0.2 x 0.02 x 0.002 = ?

Find length of the arc whose central angle is 45° and radius of the circle is 28 cm?

If 1-aa3+9 = 19 - a1-a3, then what is the value of a?