Quantitative Aptitude - Arithmetic Ability Questions

Rohan borrowed a certain sum of money at simple interest. Rate of interest was 3% per annum for first 3 years, 4% per annum for next 5 years and 6% per annum for next 7 years. If he paid Rs 2059 as interest, then what is the sum borrowed (in Rs)?

Deepak marks the price of his table 60% above the cost price. He gives some discount on it and earns profit of 15.2%. What is the discount percentage?

The ratio of present ages of Ratna and Shantanu is 5:4. After 19 years the ratio of their ages will be 10:9. What is Ratna's present age?

The area of a triangle with vertices A (0, 8) , O (0,0) and B (5, 0) is:

A photographer allows a discount of 10% on the advertised price of a camera. The price (in Rs) that must be marked on the camera, which cost him Rs 600, to make a profit of 20% would be

What is the equation of the line passing through the point (-1,3) and having x-intercept of 4 units?

Find the area (in sq units) enclosed by y = 0, x+6=0 and 2x-3y=6.

A solid has 12 vertices and 30 edges. How many faces does it have?