Quantitative Aptitude - Arithmetic Ability Questions

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

What is the value 32cos 39sin 51-sin239 + sin251

At what point does the line 3x + 2y = -12 intercept the Y-axis?

3cosA is equal to

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

When a number is increased by 42, it becomes 121% of itself. What is the number?

Calculate the principal if an amount of Rs. 441 is received on compound interest at the rate of 5% per annum after 2 years.

The least number that must be substracted from 63520 to make the result a perfect square is