Quantitative Aptitude - Arithmetic Ability Questions

Find the value of 6732.8 + 673.28 + 67.328 + 6.7328 + 0.67328 ?

If the standard deviation of a population is 4.5, what would be the population variance?

In a triangle ABC, if ∡A +∡C = 140° and ∡A + 3∡B = 180°, then ∡A is equal to

15 years ago, Shyam was twice as old as Prbhat. Five years from now Prabhat's age will be 5/8 of Shyam's age. What is Shyam's current age?

Simple interest on a sum of Rs 6800 for 18 months is Rs 2244. What is the rate (in percentage) of interest per annum?

The median of the numbers 4, 2, 2, 6, 3 and 8 is

If the radius of the cylinder is decreased by 20%, then by how much percent the height must be increased, so that the volume of the cylinder remains same?

The cash difference between the selling price of an article at a profit of 2% and 16% is Rs.3. The ratio of two selling prices is