Direction: Study the following table carefully to answer these questions.

What is the average number of students appeared from school B for all the years ?

The volume of a solid right circular cone is 600 π cm³, and the diameter of its base is 30 cm. The total surface area (in cm²) of the cone is:

The average of 100 numbers is 44. The average of these 100 numbers and 4 other new numbers is 50. The average of the four new numbers will be

The difference between the selling prices of some articles if sold for Rs.12 per article instead of Rs.9 per article is Rs.150. If the sold price of these articles is Rs.250 then find the selling price of 21 articles if profit earned is 20%.

The diagonal of a square is 14 cm. What will be the length of the diagonal of the square whose area is double of the area of first square?

The sum 9 + 16 + 25 + 36 +_______+ 100 is equal to?

Directions: The bar chart given below shows the percentage distribution of the production of various models of a mobile manufacturing company in 2007 and 2008. The total production in 2007 was 35 lakh mobile phones and in 2008 the production was 44 lakh. Study the chart and answer the following questions.
Percentage of six different types of mobiles manufactured by a company over two year

Total number of mobiles of models A, B and E  manufactured in 2007 was 

The mean of 20 items is 55. If two items 45 and 30 are removed, what will be the new mean of the remaining items?