Quantitative Aptitude - Arithmetic Ability Questions

If ab+ba=1,then the value of a3+b3 is

If (x2/yz) + (y2/zx) + (z2/xy) = 3, then what is the value of (x + y + z)3?

A Rs 100 shirt is offered at 10% discount and a Rs 300 pair of trousers at 20% discount. If Pritam bought 1 shirt and 3 pairs of trousers, what is the effective discount (in %) he got?

What is the simplified value of [2/(cot A – tan A)]?

If x - y = 6 and xy = 40, then find x2 + y2 ?

If ab-1b=cb-1c=ac-1a, then ac+ba+cb

To cover a distance of 252 km in 2.5 hours what should be the average speed of the car in meters/second?

A shopkeeper, sold dried apricots at the rate Rs 1,310 a kg and bears a loss of 13%. Now if he decides to sell it at Rs 1,441 per kg, what will be the result?