Quantitative Aptitude - Arithmetic Ability Questions

Find the odd words/letter/number from the given alternatives:

If √(1 + cot2A) = x, then the value of x is

If the shopkeeper sells an item at Rs 450 which is marked as Rs 600, then what is the discount he is offering?

The median of the numbers 14, 12, 12, 16, 13 and 18 is

Find the median, mode and mean of 9, 5, 8, 9, 9, 7, 8, 9, 8.

Two donkeys are standing 400 meters apart. First donkey can run at a speed of 3 m/sec and the second can run at 2 m/sec. If two donkeys run towards each other after how much time (in sec) will they bump into each other?

A and B together can do a piece of work in 36 days, B and C together can do it in 24 days. A and C together can do it in 18 days. The three working together can finish the work in

What is the difference of the factors of the expression x2 + (1/x2) – 6?