Quantitative Aptitude - Arithmetic Ability Questions

Reflection of the point (4,­6) in the origin is

Find the value of 777777?

Two students appeared for an examination. One of them secured 9 marks more than the other and his marks were 56% of the sum of their marks. The marks obtained by them are

Present ages of Rahul and his brother are in the ratio of 5 : 3. After 4 years ratio of ages of Rahul’s brother and his sister will be 5 : 6. If the present age of his sister is 26 years, then what will be the age (in years) of Rahul 3 years from now?

What will be the sum of the measures all the interior angles of a polygon having 14 sides?

An hour-long test has 60 problems. If a student completes 30 problems in 25 minutes, then the required seconds he has taken on average for computing each of the remaining problems is

If 20 men working 8 hours per day can complete a piece of work in 21 days. How many hours per day must 48 men work to complete the same job in 7 days?

The amount received at 10% per annum compound interest after 3 yrs is Rs 10,648. What was the principal (in Rs)?