Quantitative Aptitude - Arithmetic Ability Questions

If A alone can do a job in 40 days then, in how many days can B alone do the job if together they can do the job in 8 days?

In what time will Rs.4400 become Rs.4576 at 8% per annum interest compounded half-yearly?

In ΔPQR, PS and PT are bisectors of ∠QPR and ∠QPS respectively. If ∠QPT = 30°, PT = 9 cm and TR = 15 cm, then what is the area (in cm2) of ΔPTR

The average of 5 consecutive numbers is 50%, then difference between 'product of largest and smallest number' with 'product of fourth and second number' is

Slit 69 into three parts such that they are in A.P. and the product of their smaller parts is 483.

Mr. Ibrahim borrowed Rs. 7500 at 5% per annum compound interest. The compound interest compounded annually for 2 years is

Consider two-digit numbers which remain the same when the digits interchange their positions. What is the average of such two-digit numbers?

One of four words is a class to which the other three belong. Identify the class.