Quantitative Aptitude - Arithmetic Ability Questions

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

If x - 2y = 2 and 3x + y = 20, then the value of (x,y) is

If cosec 45° - sin 30° = x, then x is

If P : Q : R = 6 : 7 : 8 and R : S = 3 : 5, then what is P : S?

The ratio of curved surface area of a right circular cylinder to the total area of its two bases is 2 : 1. If the total surface area of cylinder is 23100 cm2, then what is the volume (in cm3) of cylinder?

If a person bought an item for Rs. 96 and sold it at a profit of 12.5%, the selling price of the item was

In an arithmetic progression, if 9 is the 5th term, -26 is the 12th term, then -6 is which term?

Complete the number series by choosing the missing terms from the options. 32, 64, 256, 1536, ? ,122880,1474560