Quantitative Aptitude - Arithmetic Ability Questions

If by selling an article for Rs. 390 a shopkeeper gains 20% , then the cost is

How many natural numbers are there between 1000 to 2000, which when divided by 341 leaves remainder 5?

If a+b+c = 0, then (a^3 + b^3 + c^3)^2 = ?

What is the area (in sq cm) of a rectangle if its diagonal is 51 cm and one of its sides is 24 cm?

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

The length of a rectangle is increased by 25%. To maintain the same area, the breadth has to be decreased by

The third proportional of two numbers 4 and 28 is _______.

The ratio of three numbers is 2 : 5 : 7. If their product is 1890, then what is the sum of the three numbers?