Quantitative Aptitude - Arithmetic Ability Questions

Solve the following equation to find x: (x − 2)2 − 36 = 0 : xεN

If a – b = 11 and ab = 24, then value of a2 + b2 is

The value of  (0.3)2/100=?

2cos[(C+D)/2]sin[(C-D)/2] is equal to

Bipul is 16 years younger than Saibal. 12 years hence, Saibal's age will be 1.5 times that of Bipul. Saibal is now ___ years old.

A mobile plan costs Rs. 32 for 6 minutes. What is the approximate cost, in rupees, for 4 minutes?

If two successive discounts of 30% and 10% are given, then what will be the ratio of marked price to selling price?

Choose the odd word/letters/number/number pair from the given alternatives.