The following graph shows production (in thousands) of two types (P and Q) of vehicles by a factory over the years 2009 to 2014. Study the graph and answer the given questions.

The ratio of total production of Type P vehicles to total production of type Q vehicles over the years is

• 48 : 41

• 5 : 8

• 8 : 5

• 8 : 5

The following graph shows production (in thousands) of two types (P and Q) of vehicles by a factory over the years 2009 to 2014. Study the graph and answer the given questions.

The production of Type Q vehicles in 2010 was approximately what percent of Type vehicles in 2014?

• 60

• 45.5

• 54.5

• 54.5

The adjoining diagram is frequency polygon for the scores of students in a test. What is the total number of students appeared in the test?

• 250

• 175

• 180

• 200