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Number System LCM & HCF Percentage Ratio & Proportion Average Simple Interest

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Advanced Mathematics

Algebra Geometry Mensuration Trigonometry Logarithms & Indices Coordinate Geometry

Statistics & Probability

Statistics Probability Permutation Combination Set Theory Data Interpretation

Data Interpretation Aptitude Questions & Formulas with answer


Ques 11 GATE 2022

Four cities P, Q, R, and S are connected through one-way routes as shown in the figure. The travel time between any two connected cities is one hour. The boxes beside each city name describe the starting time of the first train of the day and their frequency of operation. For example, from city P, the first trains of the day start at 8 AM with a frequency of 90 minutes to each of R and S. A person does not spend additional time at any city other than the waiting time for the next connecting train. If the person starts from R at 7 AM and is required to visit S and return to R, what is the minimum time required?

A

6 hours 30 minutes

B

3 hours 45 minutes

C

4 hours 30 minutes

D

5 hours 15 minutes

(a) is the correct answer.

Ques 12 GATE 2021

The number of students passing or failing in an exam for a particular subject are presented in the bar chart above. Students who pass the exam cannot appear for the exam again. Students who fail the exam in the first attempt must appear for the exam in the following year. Students always pass the exam in their second attempt.
The number of students who took the exam for the first time in the year 2 and the year 3 respectively, are

A

65 and 53

B

60 and 50

C

55 and 53

D

55 and 48

(d) is the correct answer.

Ques 13 GATE 2020

The profit shares of two companies P and Q are shown in the figure. If the two companies have invested a fixed and equal amount every year, then the ratio of the total revenue of company P to the total revenue of company Q, during 2013 - 2018 is

A

15:17

B

16:17

C

17:15

D

17:16

(d) is the correct answer.

Ques 14 GATE 2020

The profit shares of two companies P and Q are shown in the figure.
If the two companies have invested a fixed and equal amount every year, then the ratio of the total revenue of company P to the total revenue of company Q, during 2013-2018 is

A

15:17

B

16:17

C

17:15

D

17:16

(b) is the correct answer.

Ques 15 GATE 2020

The revenue and expenditure of four different companies P, Q R and S in 2015 are shown in the figure. If the revenue of company Q in 2015 was 20% more than that in 2014, and company Q had earned a profit of 10% on expenditure in 2014, then its expenditure (in million rupees) in 2014 was

A

32.7

B

33.7

C

34.1

D

35.1

(c) is the correct answer.

Ques 16 GATE 2019

In a country of 1400 million population, 70% own mobile phones. Among the mobile phone owners, only 294 million access the Internet. Among these Internet users, only half buy goods from e-commerce portals. What is the percentage of these buyers in the country?

A

10.50

B

14.70

C

15.00

D

50.00

(a) is the correct answer.

Ques 17 GATE 2019

n the given diagram, teachers are represented in the triangle, researchers in the circle and administrators in the rectangle. Out of the total number of the people, the percentage of administrators shall be in the range of _________.

A

0 to 15

B

16 to 30

C

31 to 45

D

46 to 60

(c) is the correct answer.

Ques 18 GATE 2019

The bar graph in Panel (a) shows the proportion of male and female illiterates in 2001 and 2011. The proportions of males and females in 2001 and 2011 are given in Panel (b) and (c), respectively. The total population did not change during this period. The percentage increase in the total number of literates from 2001 to 2011 is

A

30.43

B

33.43

C

34.43

D

35.43

(a) is the correct answer.

Ques 19 GATE 2018

In a detailed study of annual crow births in India, it was found that there was relatively no growth during the period 2002 to 2004 and a sudden spike from 2004 to 2005. In another unrelated study, it was found that the revenue from cracker sales in India which remained fairly flat from 2002 to 2004, saw a sudden spike in 2005 before declining again in 2006. The solid line in the graph below refers to annual sale of crackers and the dashed line refers to the annual crow births in India. Choose the most appropriate inference from the above data.

A

There is a strong correlation between crow birth and cracker sales.

B

Cracker usage increases crow birth rate.

C

If cracker sale declines, crow birth will decline.

D

Increased birth rate of crows will cause an increase in the sale of crackers.

(a) is the correct answer.

Ques 20 GATE 2018

A designer uses marbles of four different colours for his designs. The cost of each marble is the same, irrespective of the colour. The table below shows the percentage of marbles of each colour used in the current design.
The cost of each marble increased by 25%. Therefore, the designer decided to reduce equal numbers of marbles of each colour to keep the total cost unchanged.
What is the percentage of blue marbles in the new design?

A

35.75

B

40.25

C

43.75

D

46.25

(c) is the correct answer.

Ques 21 GATE 2018

In a detailed study of annual crow births in India, it was found that there was relatively no growth during the period 2002 to 2004 and a sudden spike from 2004 to 2005. In another unrelated study, it was found that the revenue from cracker sales in India which remained fairly flat from 2002 to 2004, saw a sudden spike in 2005 before declining again in 2006. The solid line in the graph below refers to annual sale of crackers and the dashed line refers to the annual crow births in India. Choose the most appropriate inference from the above data.

A

There is a strong correlation between crow birth and cracker sales.

B

Cracker usage increases crow birth rate.

C

If cracker sale declines, crow birth will decline.

D

Increased birth rate of crows will cause an increase in the sale of crackers.

(a) is the correct answer.

Ques 22 GATE 2017 SET-2

In the graph below, the concentration of a particular pollutant in a lake is plotted over (alternate) days of a month in winter (average temperature 10°C) and a month in summer (average temperature 30°C).

Consider the following statements based on the data shown above:
i. Over the given months, the difference between the maximum and the minimum pollutant concentrations is the same in both winter and summer.
ii. There are at least four days in the summer month such that the pollutant concentrations on those days are within 1 ppm of the pollutant concentrations on the corresponding days in the winter month.

Which one of the following options is correct?

A

Only i

B

Only ii

C

Both i and ii

D

Neither i nor ii

(b) is the correct answer.

Ques 23 GATE 2017 SET-1

The growth of bacteria (lactobacillus) in milk leads to curd formation. A minimum bacterial population density of 0.8 (in suitable units) is needed to form curd. In the graph below, the population density of lactobacillus in 1 litre of milk is plotted as a function of time, at two different temperatures, 25°C and 37°C.

Consider the following statements based on the data shown above:
i. The growth in bacterial population stops earlier at 37°C as compared to 25°C.
ii. The time taken for curd formation at 25°C is twice the time taken at 37°C.

Which one of the following options is correct?

A

Only i

B

Only ii

C

Both i and ii

D

Neither i nor ii

(a) is the correct answer.


Question Options

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