Data Interpretation Questions and Answers

The imports are minimum proportionate to the exports implies that the ratio of the value of imports to exports has the minimum value.

Now, this ratio has a minimum value 0.35 in 1997, i.e., the imports are minimum proportionate to the exports in 1997.

The ratio of imports to exports for the years 1998 and 1999 are 1.25 and 1.40 respectively.

Let the exports in the year 1998 = Rs. x crores.

Then, the exports in the year 1999 = Rs. (500 - x) crores.

Therefore 1.25 = 250/x  =>  x = 250/1.25 = 200 [Using ratio for 1998]

Thus, the exports in the year 1999 = Rs. (500 - 200) crores = Rs. 300 crores.

Let the imports in the year 1999 = Rs. y crores.

Then, 1.40 = y/300   =>  y = (300 x 1.40) = 420

Therefore Imports in the year 1999 = Rs. 420 crores.

Average annual exports of Company Z during the given period

= 1/7 x (60 + 90 + 120 + 90 + 60 + 80 + 100)

= Rs. ( 600/7 ) crores

= Rs. 85.71 crores.

From the analysis of graph the exports of Company Z are more than the average annual exports of Company Z (i.e., Rs. 85.71 crores) during the years 1994, 1995, 1996 and 1999, i.e., during 4 of the given years.

Average exports of the three Companies X, Y and Z in 1993

= Rs. [ 1/3 x (30 + 80 + 60) ] crores = Rs. ( 170/3 ) crores

Average exports of the three Companies X, Y and Z in 1998

= Rs. [ 1/3 x (50 + 100 + 80) ] crores = Rs. ( 230/3 ) crores

Difference = Rs. [ ( 230/3 ) - ( 170/3 ) ] crores 

= Rs. ( 60/3 ) crores

= Rs. 20 crores

The difference between the exports from the Companies X and Y during the various years are:

In 1993 = Rs. (80 - 30) crores = Rs. 50 crores.

In 1994 = Rs. (60 - 40) crores = Rs. 20 crores.

In 1995 = Rs. (60 - 40) crores = Rs. 20 crores.

In 1996 = Rs. (70 - 60) crores = Rs. 10 crores.

In 1997 = Rs. (100 - 80) crores = Rs. 20 crores.

In 1998 = Rs. (100 - 50) crores = Rs. 50 crores.

In 1999 = Rs. (140 - 120) crores = Rs. 20 crores.

Clearly, the difference is minimum in the year 1996.