Quantitative Aptitude - Arithmetic Ability Questions

If the loss of percent on article is 15%. Then the ratio of the cost price and sell price will be

If 2y cosθ = x sinθ and 2x secθ - y cosecθ = 3 then what is the value of x2+4y2

Dodecahedron has 20 vertices. How many edges does it have?

Among three numbers , second is twice the first and also thrice the third . If the average of the three numbers is 33 , then the largest number is

Simple interest on a sum of Rs 67400 for 14 months is Rs 4718. What is the rate (in percentage) of interest per annum?

Two mixtures have milk and water in the ratio 1 : 4 and 3 : 2 respectively. In what ratio two types of mixtures have to be mixed to get a new mixture having ratio of milk and water as 1 : 1?

A tap can fill a tank in 50 minutes. If the tank has a leakage which alone is capable of emptying the tank in 2.5 hours, the tank will now be filled in

What is the value of √2 Sec 45° + (1/√3)Tan 30°?