Study the following graph carefully to answer the given questions

After working for 3 days S is joined by O. If they complete the remaining work in 3 more days, in how many days can O alone complete the work?

Directions: The line graph shows the number of work visas issued by a country in each year from 2011 to 2016. Study the diagram and answer the following questions . 

Number of work visas issued in 2016 were lower than the previous year by ? 

Directions :- Refer the graph and answer the given questions.
 The following line graph shows the number of products sold by company A and B during six years.

The number of products sold by A in 2014 is what per cent of the number of products sold by B in 2013?

The following table shows the number of units of product produced and sold by a company over the course of six years.

Find the ratio between the total number of units sold in 2013 and 2015 and the number of units produced in 2015 and 2016?

Directions: Study the graph carefully and answer the following questions.

Find the respective ratio of the number of students in school D and school F.

Study the given graph and answer the question that follows.

If 60% of the total number of students obtaining 50 marks or more but less than 70 marks are girls and 55 % of the total number of students obtaining 70 marks or more but less than 90 marks are also girls. Then the total number of girls obtaining 50 marks or more but less than 90 marks is:

Study the following graph carefully to answer the given questions

R started the work and left after some days, when 25% work was done. After it Z joined and completed it working for 25 days. In how many days R and Z can do the complete work, working together?

Study the following graph carefully to answer the given questions

M can do a piece of work 5 days less than that of P. M and P began to work together but M leaves after some days and P completed the remaining work in 12 days. Number of days after which M left the job-