The given bar graph shows the exports of cars of type A and B (in millions) from 2014 to 2018. Study the graph and answer the question that follows.
What is the ratio of the total exports of cars of rune A in 2014 and 2018 to the total exorts of cars of type B in 2015 and 2017?
Monthly expenditure of a family on different heads is shown in the following chart.
What is the percentage of family earnings spent on rent?
Find the value of the following expression:
\[ \frac{5 - 35 \div 5 \times 15 + 5}{12 - 2} \]
The following histogram shows the marks scored by 40 students in a test of 30 marks. A student has to score a minimum of 10 marks to pass the test.
How mady stodents have scored less than two-third of the total macks?