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Question
The following pictograph shows the number of cars sold by four dealers A, B, C and D in a city. Scale: 
= 50 cars.
| Dealer | Number of cars |
| A |       |
| B |      |
| C |         |
| D |     |
Using the pictograph, drawn above, answer the following questions:
How many more cars have dealer A sold as compared to dealer D?
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Solution
Cars sold by dealer A = 6 x 50 = 300
Cars sold by dealer D = 4 x 5 = 200 ,
∴ A sold more cars than dealer D by = 300 – 200 = 100
∴ A has sold 100 more cars than dealer D.
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