Study the following table and answer the question:
The number of cars sold by dealers A, B, C, D & E during the first six months of 2018.
|
Month / Dealer |
January | February | March | April | May | June |
| A | 620 | 640 | 628 | 635 | 430 | 625 |
| B | 600 | 642 | 635 | 580 | 450 | 620 |
| C | 640 | 635 | 640 | 540 | 625 | 740 |
| D | 520 | 645 | 722 | 740 | 600 | 780 |
| E | 548 | 638 | 720 | 740 | 650 | 800 |
In July 2018, if the sales of cars by dealer D increase by the same percentage as in June 2018 over its previous month, then what is the number of cars sold by D in July 2018?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 1014
Sales of D in May = 600
Sales of D in June = 780
Sales of D in July = let's say x
Percentage increase from May to June = (780 - 600)/600 × 100
⇒ 30%
30% increase in July: 780 × 1.3
⇒ 1014