one third of 10 is 3. bcoz 10/3=3.33 and ceil of(3.33) is 4.
The ratio of present ages of Ram and Shyam is 4:3. If 10 years ago Ram was half of Shyam in age, what is the sum of their present ages?
If it were two hours later, it would be half as long until midnight as it would be if it were an hour later.