What type of soil is most suitable for growing

Find the difference between the average no. of cars sold by V in all the 3 Qrtrs to the total no. of cars sold by Y in all 3 Qrtrs?

Monthly expenditure of a family on different heads is shown in the following pie chart.

Number of cars sold by W in the 3^rdQrtr is approximately what percent of the number of cars sold by Y in the 2^ndQrtr.?

Which of the following statement is correct?

What is the ratio of number of cars sold by X, Y and Z in the 3^rd Qtr. to the number of cars sold by V, W and Z in the 1^stQrtr?