The bar graph given here shows the data of the production of cars by three different companies X, Y, Z over the years.

The average production for 5 years was maximum for which company/companies?

X and Z

Average production of X = \(\frac{30 + 45 + 25 + 50 + 40 }{5}\)

= \(\frac{190 }{5}\)

= 38

Average production of Y = = \(\frac{25 + 35 + 35 + 40 + 50 }{5}\)

= \(\frac{185 }{5}\)

= 37

Average production of Z = = \(\frac{35 + 40 + 45 + 35 + 35 }{5}\)

= \(\frac{190 }{5}\)

= 38

So , X & Z have maximum average.