Quantitative Aptitude - Arithmetic Ability Questions

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

Which one of the following is true for 0°<θ<90°

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

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

Which of the following is NOT prime number?

In a triangle ABC, OB and OC are the bisectors of angles ∠ B and ∠C respectively. ∠BAC = 60°. Then the angle ∠BOC will be

If x4+1x4=119,then the value of x-1x is

For an article the profit is 170% of the cost price. If the cost price increases by 20% but the selling price remains same, then what is the new profit percentage?