Direction: The following graph shows the number of boys and girls in Class V, Class VI, Class VII and Class VIII. Study the graph and answer the question.

What is the average number of girls in all the classes?

Rewa has some hens and some goats. If the total number of animal heads is 100 and the total number of animal feet is 348, then what is the total number of goats with Rewa? 

The compound interest on a certain sum of money invested for 2 years at 5 % per annum is Rs. 328. The simple interest on the sum, at the same rate and for the same period will be 

Find the value of ∠OBE=?

Vishnu travelled equal distances at speeds of 10 km/hr, 30 km/hr and 8 km/hr and took a total of 15.5 minute to complete. Find the total distance he travelled in km.

A boat goes 15 km in an hour in still water, and takes thrice the time to cover the same distance upstream. The speed of the current (in km / hr) is –

Directions : Study the following frequency polygon and answer the questions. Given a line graph showing the number of students passed in Higher Secondary Examination in a school over the years 2008 to 2013.

The increase in percentage of passed students from 2008 to 2011 approximately is 

If A is equal to 20% of B and B is equal to 25% of C; then what percent of C is equal to A?