Data Interpretation (UPSC)

Total Questions: 57

11. Production of Rice and Wheat (In 'million of Tonnes') : [1999]

Year	Rice	Wheat	Percentage of Wheat to Rice
1950-51	20.58	6.46	31.4
1960-61	34.58	11.00	31.8
1970-71	42.22	23.83	56.4
1980-81	58.63	36.31	67.7
1990-91	74.29	55.14	74.2
1994-95	81.81	65.77	80.4
1995-96	79.62	62.62	78.6

The above table indicates the performance of India in rice and wheat production from 1950-51 to 1995-96. Which of the following conclusions arrived at from the above table would be valid?

1. Record production of rice as well as wheat has been increasing in 1994-95.

2. The ratio of wheat to rice production seems to have steadily increased over 16 years.

3 Wheat has not been popular among the Indian population before 1980.

4. India became self-sufficient in rice and wheat only after 1990 Select the correct answer using the codes given below:

(a) 1 and 2
(b) 1, 2, 3 and 4
(c) 3 and 4
(d) None of these

Correct Answer: (a) 1 and 2
Note:

From the given table, we see that record production of rice & wheat has been in 1994-95 and that are 81.81 M tonnes and 65.77 M tonnes respectively. Also from 1980 to 1995 production seems to have steadity increase.

12. The yield versus fertilizer input is shown in the graph. [1999]

Consider the following statements based on this graph:

1. Yield rate is zero at B and C

2. There is no yield with no fertilizer input

3. The yield is minimum at D

4. The yield is neither minimum nor maximum at C

Which of the above statements are correct?

(a) 1, 2 and 4
(b) 3 and 4
(c) 2 and 3
(d) 1, 3 and 4

Correct Answer: (b) 3 and 4
Note:

From the graph, it can be seen that yield rate is not zero at B and C. With no fertilizer input, yield is 20. Yield is clearly minimum at D. i.e., 8. At C, yield is 20 and it is neither maximum nor minimum. So clearly option 3 and 4 are correct.

13. A company manufacturing air-conditioners set a monthly target. The target and realised values are shown in the bar chart. [1999]

Consider the following statements based on the chart:

1. The targeted sales on a monthly basis have been achieved.

2. The overall target value has been exceeded by 7.5%.

3. The Sales Department deserves a pat on the back.

Which of the above statements is/are correct?

(a) 1 alone
(b) 2 alone
(c) 1 and 2
(d) 2 and 3

Correct Answer: (b) 2 alone
Note:

From the given bar graph, we can observe that overall target value has been exceeded by 7.5%.

14. The distribution of 1,00,000 tourists who visited India during a particular year is shown in the given charts. Based on this, the number of Japanese tourists below the age of 39 who visited India in the year concerned is: [2000]

(a) 10,000
(b) 8,000
(c) 6,000
(d) 4,000

Correct Answer: (d) 4,000
Note:

Tourists from Japan = 20/100 (100000) = 20000% below 39 years = 10 + 10 = 20%

% of Tourists from Japan below 39 years = 20/100 * (20000) = 4000

15. The following table shows the percentage change in the consumption of electricity by five towns P, Q, R, S, T from 1986 to 1988: [2001]

If town T consumed 500,000 units in 1986, how much did it consume in 1988?

Percent change
Town	From 1986 to 1987	From 1987 to 1988
P	+8	-18
Q	-15	+11
R	+6	+9
S	-7	-5
T	+13	-6

(a) 371,000 units
(b) 531, 100 units
(c) 551,100 units
(d) 571, 100 units

Correct Answer: (b) 531, 100 units
Note:

If there are two percentage changes of x% and y%, then net % change = x + y + xy/100 (xy)/100

Net% change for 7 from 1986 to 1988,

13 - 6 - (13*6)/100 = 6.22

Consumption of electricity by T in 1988

= 500000(1 + 6.22/100) = 531100

16. Consider the four age pyramids given below namely A, B, C and D representing four different countries. [2011-1]

Which one of them indicates the declining population?

(a) A
(b) B
(c) C
(d) D

Correct Answer: (c) C
Note:

Declining population means greater number of death rate i.e. narrower upper part and lower number of birth rate i.e. narrower base. These conditions are satisfied by 'pyramids C'.

17. The following figure has four curves nameghly A, B, C and D. Study the figure and answer the item that follows: [2011-1]

Which curve indicates the exponential growth?

(a) A
(b) B
(c) C
(d) D

Correct Answer: (c) C
Note:

Exponential growth means increase exponentially. Only graph (c) shows the exponential growth of population during year 1800-2000.

18. Which of the two towns has a higher number of persons with Diabetes? [2011-1]

The following pie charts show the break up of disease categories recorded in the patients from two towns, Town A and Town B. Pie charts plot the disease categories as percentage of the total number of patients. Based on these answer the two items that follow the charts.

(a) Town A
(b) Town B
(c) Same in Town A and Town B
(d) No inference can be drawn

Correct Answer: (d) No inference can be drawn
Note:

Populations of both towns A and B are not given, hence, no inference can be drawn.

19. What can we say about persons with more than one disease from these graphs? [2011-1]

(a) There are likely to be persons with more than one disease in Town A.
(b) There are likely to be persons with more than one disease in Town B.
(c) There are likely to be persons with more than one disease in both Towns A and B.
(d) No inference can be drawn.

Correct Answer: (b) There are likely to be persons with more than one disease in Town B.
Note:

The sum of percentage of patients in town A is 100, hence there is no any patient with more than one disease.

20. Consider the following Velocity - Time graph. It shows two trains starting simultaneously on parallel tracks. [2011-1]

With reference to the above graph, which one of the following statements is not correct?

(a) Train B has an initial acceleration greater than that of Train A.
(b) Train B is faster than Train A at all times t₀.
(c) Both trains have the same velocity at time t₀.
(d) Both trains travel the same distance in time t, units.

Correct Answer: (d) Both trains travel the same distance in time t, units.
Note:

Distance = timex speed, here train B is faster than train A, hence Train B will cover more distance than train A.

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