Quantitative Aptitude - Arithmetic Ability Questions

Select the related word/letters/numbers from the given alternatives:

5 : 100 :: 7 : ?

The simple interest on a sum of money will be Rs.600 after 10 years. If the principal is trebled after 5 years what will be the total interest at the end of the tenth year ?

If the true discount on s sum due 2 years hence at 14% per annum be Rs. 168, the sum due is ?

The length of the rectangle is 20% more than its breadth . what will be the ratio of the area of the rectangle to that of the square whose side is equal to the breadth of the rectangle?

In a certain store, the profit is 320% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit

The length of a room is 5.5 m and width is 3.75 m. Find the cost of paying the floor by slabs at the rate of Rs. 800 per sq.metre.

Direction: What should come in the place of question mark (?) in the following number series?

3, 4, 10, 33, 136, ?

If a=2b/3, b=2c/3, and c=2d/3, then find the ratio of b and d: