The given data is regarding the number of paperback and hardbound books sold by four different book shops A, B, C and D:
| Shops | Hardbound books sold | Paperback books sold |
|---|---|---|
| A | 3500 | 2000 |
| B | 3900 | 5200 |
| C | 4400 | 5500 |
| D | 5500 | 6600 |
What is the ratio between total sale by shops A and C together to the total sale by shops B and D?
A77 : 106 ✓ Correct
B73 : 102
C17 : 33
D21 : 27
Correct answer: (A) 77 : 106
Explanation
Total sale by A and C = 5500 + 9900 = 15400.
Total sale by B and D = 9100 + 12100 = 21200.
Ratio = 15400 : 21200, divide both by 200 to get 77 : 106.
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