Quantitative Aptitude - Arithmetic Ability Questions

In ΔABC, ∠B = 70° and ∠C = 60°. The internal bisectors of the two smallest angles of ΔABC meet at O. The angle so formed at O is

Marked price of a chair is Rs 800 and discount is 15%. What is additional discount (in percentage) should be offered to the customer to bring the price of chair to Rs 578?

If a = 299, b = 298, c = 297 then the value of 2a3 + 2b3 + 2c3 - 6abc is

cot3A is equal to

If xa+b+1=xa-b+a-ba+b, then x is equal to

If the value of a company stock drops from Rs. 25 per share to Rs. 21 per share, the percentage decrease per share is

In the following question, select the odd number from the given alternatives.

If the compound interest for the 3rd and 4th year on a certain principal is Rs 125 and Rs 135 respectively, what is the rate of interest (in %)?