Data Interpretation

Bar Chart 1

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Bar Chart 1

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The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991 - 1992 to 1998 - 1999.

Foreign Exchange Reserves Of a Country. (in million US $)


Question 1
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
E
1.8
Correct Answer: Option D

Required ratio =5040= 1.5.
3360


Question 2
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
E
5 : 3
Correct Answer: Option C

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.

Question 3
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%
E
140%
Correct Answer: Option

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 =(4320x 100)% 
3480
= 124.14% ~= 125%.

Question 4
What was the percentage increase in the foreign exchange reserves in 1997-98 over 1993-94?

A
100
B
150
C
200
D
620
E
2520
Correct Answer: Option A

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 =(2520x 100)% = 100%.
2520

Question 5
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
E
1997-98
Correct Answer: Option A

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:

For 1992 - 1993 =[(3720 - 2640)x 100]% = 40.91%.
2640

For 1994 - 1995 =[(3360 - 2520)x 100]% = 33.33%.
2520

For 1996 - 1997 =[(4320 - 3120)x 100]% = 38.46%.
3120

For 1997 - 1998 =[(5040 - 4320)x 100]% = 16.67%.
4320

Clearly, the percentage increase over previous year is highest for 1992 - 1993