In the following graph the number of laptops manufactured by six different companies in the years 2010 and 2011 has been given. Read the graph carefully and answer the questions.
What is the average number of laptops (in thousands) manufactured by all companies taken together in 2010?
Number of laptops (in thousands) manufactured by all companies taken together in 2010
= $$25 + 15 + 10 + 15 + 40 + 30$$
= $$135$$
=> Required average = $$\frac{135}{6}$$
= $$\frac{45}{2} = 22.5$$
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