Data Interpretation Test

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Data Interpretation Test - 6

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Weekly Quiz Competition

Question 1
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Directions For Questions

Directions: The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991-92 to 1998-99. Answer the questions based on graph.

...view full instructions

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

A
1.5

B
2

C
3.5

D
2.6

Solution

Required Ratio= $\frac{5040}{3360}$ = 1.5

Hence, the correct option is (a).
Question 2
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Directions For Questions

Directions: The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991-92 to 1998-99. Answer the questions based on graph.

...view full instructions

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

A
80%

B
90%

C
100%

D
110%

Solution

Foreign exchange reserve in 1997-98 = 5040 million US $

Foreign exchange reserve in 1993-94 = 2520 million US $

Increase = 5040 - 2520 = 2520 million US $

Hence, the correct option is (c).
Question 3
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Directions For Questions

Directions: The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991-92 to 1998-99. Answer the questions based on graph.

...view full instructions

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

A
1994-95

B
1995-96

C
1992-93

D
None of these

Solution

Before solving this, put a clever eye on the chart, just calculate for those years which are actually having increase if we compare to previous year.

These years are 1992-93, 1994-95, 1996-97, 1997-98

So lets calculate the percentage increase of these years compared to previous years:

For year 1992-93 = $[\frac{(3720 - 2640)}{(2640)}]$ $\times$ 100 = 40.91%

For year 1994-95 = $[\frac{(3360 - 25200)}{(2520)}] \times 100$ = 33.33%

For year 1996-97 = $[\frac{(4320 - 3120)}{(3120)}]$ $\times$ 100 =38.46 %

For year 1997-98 = $[\frac{(5040 - 4320)}{(4320)}]$ $\times$ 100=16.67%

The percent increase of foreign exchange reserves over the previous year is the highest for 1992-93.
Question 4
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Directions For Questions

Directions: The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991-92 to 1998-99. Answer the questions based on graph.

...view full instructions

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

A
80%

B
100%

C
125%

D
130%

Solution
Question 5
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Directions For Questions

Directions: The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991-92 to 1998-99. Answer the questions based on graph.

...view full instructions

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:

A
3:5

B
2:3

C
4:7

D
3:7

Solution

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

The country had reserves above 3480 million US $ during the years 1992-93, 1996-97 and 1997-98. So three years’ was above the average and for rest of five years it was below the average

So required ratio is 3:5.

Hence, the correct option is (a).
Question 6
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Directions For Questions

Directions: Study the following line graph which gives the number of students who joined and left the school in the beginning of the year for six years from 1996 to 2001.

Initial strength of the school in 1995 was 3000 Answer questions based on the line graph given below.

...view full instructions

The strength of the school increased from 1997 to 1998 by what percent ?

A
1.7%

B
1.8%

C
1.9%

D
2%

Solution

Let analyse the graph before answering question.

Number of students in 1995 = 3000 [given]

Number of students in 1996 = 3000-250+350 = 3100

Number of students in 1997 = 3100 - 450 + 300 = 2950

Number of students in 1998 = 2950 - 400 + 450 = 3000

Number of students in 1999 = 3000 - 350 + 500 = 3150

Number of students in 2000 = 3150 - 450 + 400 = 3100

Number of students in 2001 = 3100 - 450 + 550 = 3200

Above analysis will help us solving problems for this line graph.

Lets be back on question now,

Percentage increase in strength of the school from 1997 to 1998 will be,

So this is approx. equal to 1.7%

Hence, the correct option (a).
Question 7
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Directions For Questions

Directions: Study the following line graph which gives the number of students who joined and left the school in the beginning of the year for six years from 1996 to 2001.

Initial strength of the school in 1995 was 3000 Answer questions based on the line graph given below.

...view full instructions

The number of students studying in the school during 1999 was :

A
3100

B
3000

C
3150

D
3250

Solution

Number of students in 1995 = 3000 [given]

Number of students in 1996 = 3000 - 250 + 350 = 3100

Number of students in 1997 = 3100 - 450 + 300 = 2950

Number of students in 1998 = 2950 - 400 + 450 = 3000

Number of students in 1999 = 3000 - 350 + 500 = 3150

Hence, the correct option is (c).
Question 8
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Directions For Questions

Directions: Study the following line graph which gives the number of students who joined and left the school in the beginning of the year for six years from 1996 to 2001.

Initial strength of the school in 1995 was 3000 Answer questions based on the line graph given below.

...view full instructions

During which of the following pairs of years, the strength of the school was same ?

A
1997 and 1998

B
1998 and 2000

C
1999 and 2001

D
1996 and 2000

Solution

Number of students in 1995 = 3000 [given]

Number of students in 1996 = 3000 - 250 + 350 = 3100

Number of students in 1997 = 3100 - 450 + 300 = 2950

Number of students in 1998 = 2950 - 400 + 450 = 3000

Number of students in 1999 = 3000 - 350 + 500 = 3150

Number of students in 2000 = 3150 - 450 + 400 = 3100

Number of students in 2001 = 3100 - 450 + 550 = 3200

From from above options we find in 1996 and 2000 number of students was same i.e., 3100

Hence, the correct option is (d).
Question 9
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Directions For Questions

Directions: Study the following line graph which gives the number of students who joined and left the school in the beginning of the year for six years from 1996 to 2001.

Initial strength of the school in 1995 was 3000 Answer questions based on the line graph given below.

...view full instructions

The number of students studying in the school in 1998 was what percent of the number of students studying in the school in 2001 ?

A
90.75 %

B
91.75%

C
92.75%

D
93.75%

Solution

Number of students in 1995 = 3000 [given]

Number of students in 1996 = 3000 - 250 + 350 = 3100

Number of students in 1997 = 3100 - 450 + 300 = 2950

Number of students in 1998 = 2950 - 400 + 450 = 3000

Number of students in 1999 = 3000 - 350 + 500 = 3150

Number of students in 2000 = 3150 - 450 + 400 = 3100

Number of students in 2001 = 3100 - 450 + 550 = 3200

In 2001 students = 3200

In 1998 students = 3000

Required Percentage = $(\frac{3000}{3200} \times 100)$ % = 93.75%

Hence, the correct option is (d).
Question 10
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Directions For Questions

Directions: Study the following line graph which gives the number of students who joined and left the school in the beginning of the year for six years from 1996 to 2001.

Initial strength of the school in 1995 was 3000 Answer questions based on the line graph given below.

...view full instructions

Among the given years the largest number of students joined in which year ?

A
1999

B
2000

C
2001

D
1998

Solution

As calculated above, the largest number of students (i.e., 550) joined the school in the year 2001

Hence, the correct option is (c).