Quantitative Aptitude - Arithmetic Ability Questions

If α + β = 90° and α:β = 2:1, then the ratio of cosα to cosβ is

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

Sita's bucket has thrice the capacity as Ramu's bucket. It takes 60 turns for Sita's bucket to fill the empty drum. How many turns it will take for both the buckets of Sita's and Ramu's, having each turn together to fill the empty drum?

A shopkeeper by selling 13 Titan watches, earns a profit equal to the selling price of 3 Titan watches. His profit percentage is

A car travels a certain distance at 32 km/h and comes back at 68 km/h. What is the average speed for total journey?

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?

Sum of two numbers is thrice their difference. Their ratio is

In how many years will Rs 25,000 yield Rs 8,275 as compound interest at 10% per annum compounded annually?