Quantitative Aptitude - Arithmetic Ability Questions

Selling price of an article is Rs 494 and discount of 5% is offered. What is the marked price (in Rs)?

The ratio of present ages of Ramya and Saurabh is 8:7. After 10 years the ratio of their ages will be 12:11. What is Ramya's present age?

A librarian purchased 60 story books for his library. But he found that he could get 4 extra books by spending Rs 336 more and then the overall average price per book would be reduced by Re 1. The previous average price of each book was

When a number is increased by 18, it becomes 106% of itself. What is the number?

If 2r = h + r2+h2, then the ratio of r:h is

Find the value of 200 x 20 x 2 x 0.2 x 0.02 x 0.002 = ?

D and E are points on the sides AB and AC respectively of ΔABC such that DE is parallel to BC and AD:DB = 4:5, CD and BE intersect each other at F. Then the ratio of the areas of ΔDEF and ΔCBF

5 year hence, ratio of ages of A and B will be 7 : 5 and difference between their ages will be 4 years. What are present ages (in years) of A and B
respectively?