The table shows the production of different types of cars (in thousands).
| Year | 2014 | 2015 | 2016 | 2017 | 2018 |
| Cars | |||||
| A |
42 |
53 | 44 | 66 | 65 |
| B | 46 | 49 | 57 | 64 | 72 |
| C | 54 | 45 | 45 | 50 | 56 |
| D | 48 | 56 | 63 | 65 | 68 |
| E | 46 | 48 | 56 | 57 | 64 |
The average production of cars in 2018 is approximately what percent less than the total production of type D cars in 2015 and type B cars in 2017 taken together?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 45.8%
The average production of cars in 2018 = (65 + 72 + 56 + 68 + 64)/5 = 325/5 = 65
Total production of type D cars in 2015 and type B cars in 2017 taken together
⇒ 56 + 64 = 120
⇒ ((120 - 65)/120) × 100
⇒ (55/120) × 100
⇒ 45.8%