Quantitative Aptitude - Arithmetic Ability Questions

What least value which should be added to 1812 to make it divisible by 7, 11 and 14?

If √(1+tan2A) = x, then the value of x is

In a class of 56 students there are 28 girls. The average weight of these girls is 46 kg and average weight of the full class is 51 kgs. What is the average weight of the boys of the class?

The rate of working of A and B are in the ratio of 2:3. The number of days taken by them to finish the work is in the ratio:

P does half as much work as Q in 1/3 of the time. If together they take 15 days to complete a work, how many days will P take to do it alone?

How long will Ramesh take to run round a square park of edge 50 meters, if he runs at the rate of 18 km/hr?

There is 40% increase in an amount in 10 years at simple interest. What will be the compound interest of Rs. 30000 after 3 years at the same rate?

The area of a semicircle is 308 sq.cm. Calculate its perimeter (in cm)