Quantitative Aptitude - Arithmetic Ability Questions

What least value which should be added to 1812 to make it divisible by 7, 11 and 14?

If [a + (1/a)]2 – 2[a – (1/a)] = 12, then which of the following is a value of 'a'?

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

The value of cos220° + cos270°is

If tan(A/2) = x, then the value of x is

The product of two numbers is 48. If one number equals "The number of wings of a bird plus 2 times the number of fingers on your hand divided by the number of wheels of a Tricycle". Then the other number is

Which of the following is a reductible fraction?

What is the average of first 30 multiples of 9?