Quantitative Aptitude - Arithmetic Ability Questions

The difference between cost price and selling price is Rs 12.54. If loss percentage is 33%, then what is the cost price (in Rs)?

If a certain sum of money doubles itself in 7 years 8 months at simple interest, then what will be the yearly rate of interest (in %)?

What is the value of (cos 40° – cos 140°)/(sin 80° + sin 20°)?

Common factor of 24b6c8d2, 18a6c2d4, 12a4b4 is

In the given figure, O is the centre of the circle and QOR = 50 deg, then what is the value of RPQ (in deg) ?

If the simple interest on Rs. 400 for 10 years is Rs. 280, then rate of interest per annum is

At 13% discount the selling price of a oven is Rs 18000, what is the selling price if the discount is 27.5%?

A dealer marks his goods 20% above their cost prices. Then,he allows such a discount on the marked price so that he makes a profit of 8%. The rate of discount is: