Company 1 sold 20000 bikes each year from 2011 to 2016 and company 2 sold 10000 bikes each year from 2011 to 2016. What is the difference (in units) in average yearly production of company 1 and 2?

For Company 1, bikes sold in each year = 20,000

Total production from 2011 to 2016

= $$(0.6+0.9+0.7+0.9+1.3+1.3)\times20,000$$

= $$5.7\times20,000=114,000$$

Similarly, production from 2011 to 2016 for company 2

= $$(0.8+0.75+0.4+1.3+1.45+1.1)\times10,000=58,000$$

=> Required difference = $$114,000-58,000=56,000$$

$$\therefore$$ Difference (in units) in average yearly production of company 1 and 2 = $$\frac{56000}{6}=9333.33$$

=> Ans - (D)