Quantitative Aptitude - Arithmetic Ability Questions

What is the value of sin (–π/3) + cos(–π/6)?

If tan a = √3 + 2, then the value of tan a - cot a is

If x+3y=-3x+y, then x22y2 is equal to

A person lent certain sum of money at 5% per annum simple interest and in 15 years the interest amounted to Rs 250 less than the sum lent. What was thesum lent (in Rs)?

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

In triangle ABC, BAC = 90 deg and AD is perpendicular to BC. If AD = 6cm and BD = 4cm, then the length of BC is

In the following question, select the odd letter/letters from the given alternatives.

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