Direction: Study the following bar–diagram carefully and answer the questions.
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The ratio of the number of years, in which the foreign exchange reserves are above the average reserves, to those in which reserves are below the average reserves, is
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- 2 : 6
- 3 : 4
- 3 : 5
- 1 : 1
Correct Option: C
From the given bar diagram , we see
Total foreign exchange reserves = 2640 + 3720 + 2520 + 3360 + 3120 + 4320 + 5040 + 3120
Total number of years = 8
| Average foreign exchange reserves = | million dollar | 8 |
| Average foreign exchange reserves = |  | 27840 |  | million dollar | |
| 8 |
Average foreign exchange reserves = 3480 million dollar
Years that have more than average foreign exchange reserves ⇒ 2007, 2011, 2012
Number of the foreign exchange reserves above the average = 3
Number of the foreign exchange reserves below the average = 5
Required ratio = 3 : 5
