The following graph shows the production of wheat flour (in 1000 tonnes) by three companies X, Yand Z over the years. Study the graph and answer the questions.
What is the difference between the production of company Z in 2004 and company Yin 2000 (in thousand tonnes) ?
What is the ratio of the average production of company X in the period 2002-2004 to the average production of company Yin the same period ?
What is the approx. percentage increase in the production of company Y from 2002 to 2003?
The average production for five years was maximum for which company(s)?
For the following questions answer them individually
The ratio of the ages of two persons is 4 : 7 and-the age of one of them is greater than that of the otter by 30 years. The sum of their ages (in years) is