Study the following bar chart and answer the questions carefully.

What is the approximate difference between the average sales turnover of all the companies put together between the years 2001 - 2002 and 2002 - 2003 ?

Present ages of Sameer and Anand are in the ratio of 5 : 4 respectively. Three years hence, the ratio of their ages will become 11 : 9 respectively. What is Anand's present age in years?

$$ {4\over 5}×[{1\over 2}\ of\ 25]+12÷{3\over 4}-32=?$$

An article is sold at 5 % profit. The ratio of selling price and cost price will be 

Area of a circle inscribed in a square is 308 cm².The length of the diagonal of the square is

Directions: Each of the questions consists of a question followed by three statements. You have to study the questions and the statements and decide which of the statements(s) is/are necessary to answer the question. 

How many workers are required for completing the construction work in 10 days?
 I. 20% of the work can be completed by 8 workers in 8 days
 II. 20 workers can complete the work in 16 days
 III. One-eighth of the work can be completed by 8 workers in 5 days

Find the value of given expression. 

[76 – {90 ÷ 5 ⨯ (24 – 36 ÷ 3) ÷ 3}] 

N is the smallest three digit prime number. When N is divided by 13, then what will be the remainder?