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.
| 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 amount spent extra on commodities B and C in the year 2019 as compared to that in the year 2016, is:
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e Rs.260
The price difference in the price of commodity B from 2016 to 2019 = Rs.10
The quantity required = 20kg
Total value = 20 × 10
⇒ Rs. 200
The price difference in the price of commodity C from 2016 to 2019 = Rs.5
The quantity required = 12kg
Total value = 12 × 5
⇒ Rs. 60
Total = 200 + 60
⇒ Rs. 260