Quantitative Aptitude - Arithmetic Ability Questions

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

The two equal sides of an isosceles triangle is 20 cm each and the third side is 30 cm. What is the area(in cm2) of the triangle?

What is the equation of the line passing through the point (-1,3) and having x-intercept of 4 units?

The compound interest earned in two years at 15% per annum is Rs 20640. What is the sum invested (in Rs)?

What is the value of sin 300°?

The value of aa-b+bb-a is

By selling a table for Rs. 16,870, a shopkeeper suffers a loss of Rs. 1080. His loss percentage (rounded off to one decimal place) is

Rohan borrowed a certain sum of money at simple interest. Rate of interest was 3% per annum for first 3 years, 4% per annum for next 5 years and 6% per annum for next 7 years. If he paid Rs 2059 as interest, then what is the sum borrowed (in Rs)?