Quantitative Aptitude - Arithmetic Ability Questions

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

ABC is a right angled triangle. ∠BAC = 90 deg and ∠ACB = 60 deg. What is the ratio of the circum radius of the triangle to the side AB?

If 123 x 356 = 43788, then 1.23 x 0.356 = ?

A can complete a work in 20 days and B can complete the same work in 25 days. If both of them work together, then in 3 days what percent of the total work will be completed?

Convert binary 1101111 to decimal.

When 0.151515.....is converted into a fraction, then the result is

The ratio between the speeds of two buses is 11:9. If the second bus runs 270 kms in 15 hours, then the speed of the first bus is?

The area of a semicircle is 308 sq.cm. Calculate its perimeter (in cm)