Quantitative Aptitude - Arithmetic Ability Questions

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

A triangle has a perimeter of 200. If two of its sides are equal and the third side is 20 more than the equal sides, what is the length of the third side?

The HCF of 24, 60 and 90 is:

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

What is the difference (in Rs) between compound interest (compounded annually) and simple interest for 3 years on a principal of Rs 3000 at the annual rate of 20%?

√[(1 ­ sinA)/(1 + sinA)] is equal to?

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

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