The following table gives the details of Five commodities A, B, C, D and E with quantity required and their costs for a family in a month. Study the table and answer the questions that follow.
The percentage of increase(per kg) in the rate of commodity D from 2016 to 2019 is:
Rate of commodity D in 2016 = 75
Rate of commodity D in 2019 = 85
The percentage of increase(per kg) in the rate of commodity D from 2016 to 2019 = $$\frac{85 - 75}{75} \times 100 = \frac{10}{75} \times 100 = 13.33%$$
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