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The bar graph shows the foreign exchange reserve of a country (in million US $) from 1991-92 to 1998-99. Based on the bar graph answer the 5 questions.
The ratio of the number of years, in which the foreign exchange reserves are above the average reserves, to those in which the reserves are below the average is
Total number of foreign exchange reserves (in million US $) in the given years
= 2640 + 3720 + 2520 + 3360 + 3120 + 4320 + 5040 + 3120 = 27,840
=> Average foreign exchange reserves (in million US $) = $$\frac{27,840}{8}=3480$$
Number of years in which the foreign exchange reserves are above the average reserves = 3 (92-93, 96-97, 97-98)
Number of years in which the foreign exchange reserves are below the average reserves = 5
=> Required ratio = $$3:5$$
=> Ans - (D)
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