Quantitative Aptitude - Arithmetic Ability Questions

∆PQR is right angled at Q. If cosecP = 17/15, then what is the value of sinR ?

Complete the analogy 3 : 11 :: 7 : ___

In the following question, select the odd word pair from the given alternatives.

If 1/(tanA + cotA) = x, then value of x is

If x + y = 5, x3 + y3 = 35, then what is the positive difference between x and y?

What is the least number of complete years in which a sum of money put out at 40% annual compound interest will be more than trebled?

A and B can complete a task in 12 days. However, A had to leave a few days before the task was completed and hence it took 16 days in all to complete the task. If A alone could complete the work in 21 days, how many days before the work getting over did A leave?

If a boat goes a certain distance at 30 km/h and comes back the same distance at 20 km/hr, what is the average speed (in km/hr) for the total journey?