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 question that follow.
| Commodity | Ouantity required/ month (in kg) | Rate/kg in Rs | |
| Year 2016 | Year 2019 | ||
| A | 15 | Rs.60 | Rs.80 |
| B | 20 | Rs.50 | Rs.60 |
| C | 12 | Rs.35 | Rs.40 |
| D | 40 | Rs.75 | Rs.85 |
| E | 8 | Rs.64 | Rs.72 |
The percentage of increase(per kg) in the rate of commodity D from 2016 to 2019 is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e 13.33%
The rate of D in 2016 = Rs. 75
The rate of D in 2019 = Rs. 85
Percentage change = {(new value - old value) / old value} × 100
⇒ Percentage change = {(85 - 75) / 75} × 100
⇒ (10 / 75) × 100
⇒ 13.33%