The following is the chart depicting sale of television sets by five companies for two years and the total number of television sets produced in 2015 is 245000 and in 2020 is 280000.
What is the ratio of increase in production between M and O?

- AOption (a)
34 : 23
- BOption (b)
57 : 64
- COption (c)
16 : 9
- DOption (d)
11 : 6
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Correct answer
34 : 23