Quantitative Aptitude - Arithmetic Ability Questions

Select the odd word from the given alternatives.

An article was sold for Rs. 2,400 at a discount of 20%. Find the selling price, if the discount was 25%.

The ratio 1 : 5 can be expressed in decimal as

A missile travels at 1440 km/h. How many metres does it travel in one second?

Rameshwar goes on a trip on his motor-cycle and rides for 405 kms. If he rides for 6 hours at a speed of 45 km/hr, find at what speed he travels for the remaining 3 hours of the journey?

The average marks of 45 students is shown as 65. It includes a wrong entry of 84 marks instead of 48 marks. The correct average is:

A certain sum of money becomes 4 times of itself in 30 years at a rate of simple interest. In how many years it will become double of itself at the same rate of simple interest?

20% of a = b, then b% of 20 is the same as _________ of a.