Bar Charts - The Analysis and Interpretation of Visual Data


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Bar Charts Questions and Answers

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 reserves is?


A. 2:6
B. 3:4
C. 3:5
D. 4:4

Answer & Explanation:

Answer: Option C

Explanation:

Average foreign exchange reserves over the given period = 3480 million US $.

The country had reserves above 3480 million US $ during the years 1992-93, 1996-97 and 1997-98, i.e., for 3 years and below 3480 million US $ during the years 1991-92, 1993-94, 1994-95, 1995-56 and 1998-99 i.e., for 5 years.

Hence, required ratio = 3 : 5.



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The foreign exchange reserves in 1997-98 was how many times that in 1994-95?


A. 0.7
B. 1.2
C. 1.4
D. 1.5

Answer & Explanation:

Answer: Option D

Explanation:

Required ratio

= 5040/3360

= 1.5.



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For which year, the percent increase of foreign exchange reserves over the previous year, is the highest?


A. 1992-93
B. 1993-94
C. 1994-95
D. 1996-97

Answer & Explanation:

Answer: Option A

Explanation:

There is an increase in foreign exchange reserves during the years 1992 - 1993, 1994 - 1995, 1996 - 1997, 1997 - 1998 as compared to previous year (as shown by bar-graph).

The percentage increase in reserves during these years compared to previous year are:

Bar Charts Questions and Answers



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The foreign exchange reserves in 1996-97 were approximately what percent of the average foreign exchange reserves over the period under review?


A. 95%
B. 110%
C. 115%
D. 125%

Answer & Explanation:

Answer: Option D

Explanation:

Average foreign exchange reserves over the given period

= [ 1/8 x (2640 + 3720 + 2520 + 3360 + 3120 + 4320 + 5040 + 3120) ] million US $

= 3480 million US $.

Foreign exchange reserves in 1996 - 1997 = 4320 million US $.

Therefore Required percentage

= ( 4320/3480 x 100 ) %

= 124.14%

~= 125%.



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What was the percentage increase in the foreign exchange reserves in 1997-98 over 1993-94?


A. 100
B. 150
C. 200
D. 620

Answer & Explanation:

Answer: Option A

Explanation:

Foreign exchange reserves in 1997 - 1998 = 5040 million US $.

Foreign exchange reserves in 1993 - 1994 = 2520 million US $.

Therefore Increase = (5040 - 2520) = 2520 US $.

Therefore Percentage Increase = ( 2520/2520 x 100 ) % = 100%.



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