Quantitative Aptitude - Arithmetic Ability Questions

S, T and U started a business and their capitals are in the ratio of 3 : 4 : 6. At the end they receive the profit in the ratio of 1 : 2 : 3. What will be the respectiveratio of time period for which they contributed their capitals?

The cost price of 60 articles is same as the selling price of x articles. If there is a profit of 20%, then what is the value of x?

Sum of four consecutive odd numbers is 208. Find the largest number.

From a pack of 52 cards, 3 cards are drawn together atrandom, What is the probability of both the cards are king?

Which instrument is used for viewing the sun?

If cosec 240° = x, then the value of x is

Two pipes, when working one at a time, can fill a cistern in 3 hhrs and 4 hrs, resp while a third pipe can drain the cistern empty in 8 hrs. All the three pipes were opened together when the cistern was 1/12 full. How long did it take for the cistern to be completely full?

The marked price of a calculator is Rs 750. It is sold at a discount of 22%. If the cost price of the calculator is Rs 500, then what is the profit (in Rs)?