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CAT 2022 PYQsData Interpretation & Logical Reasoning. Free, no login required.

Data Interpretation

past year questions, CAT 2022

Bar Graphs

past year questions, Data Interpretation, CAT 2022

Easy

In the following, a year corresponds to 1st of January of that year.

A study to determine the mortality rate for a disease began in 1980. The study chose 1000 males and 1000 females and followed them for forty years or until they died, whichever came first. The 1000 males chosen in 1980 consisted of 250 each of ages 10 to less than 20, 20 to less than 30, 30 to less than 40, and 40 to less than 50. The 1000 females chosen in 1980 also consisted of 250 each of ages 10 to less than 20, 20 to less than 30, 30 to less than 40, and 40 to less than 50.

The four figures below depict the age profile of those among the 2000 individuals who were still alive in 1990, 2000, 2010, and 2020. The blue bars in each figure represent the number of males in each age group at that point in time, while the pink bars represent the number of females in each age group at that point in time. The numbers next to the bars give the exact numbers being represented by the bars. For example, we know that 230 males among those tracked and who were alive in 1990 were aged between 20 and 30.

Figure for CAT 2022 DILR question 7 (Data Interpretation)

How many people who were being tracked and who were between 30 and 40 years of age in 1980 survived until 2010?

Solution

✅ Correct Option: 1
Slide 1/4

Understanding the set :-

  1. There is a study been conducted of 1000 males and 1000 females to determine the mortality rate
  1. This set contains 4 charts -

i) First chart consist of age of those 1000 males and females in 1990

ii) second chart consist of their ages in 2000s

iii) third chart consist of their ages in 2010

iii) Forth chart consist of their ages in 2020

Age group (In 1980)Males alive in 1990Males alive in 2000Males alive in 2010Males alive in 2020
10–20230180150140
20–30235205165125
30–402101609050
40–50190100255

This table consist of all 1000 males data over the years from the chart.

Age group (In 1980)Females alive in 1990Females alive in 2000Females alive in 2010Females alive in 2020
10–20240210160100
20–30225175145105
30–4019015010060
40–502201203018

This table consist of all 1000 female data over the years from the chart.

Age group (In 1980)Males alive in 1990Males alive in 2000Males alive in 2010Males alive in 2020
10–20230180150140
20–30235205165125
30–402101609050
40–50190100255
Age group (In 1980)Females alive in 1990Females alive in 2000Females alive in 2010Females alive in 2020
10–20240210160100
20–30225175145105
30–4019015010060
40–502201203018

The total number of males in the age group of 30-40(in 1980) alive till 2010 = 9090

The total number of females in the age group of 30-40(in 1980) alive till 2010 = 100100

Thus, the total number of people in the age group of 30-40(in 1980) alive till 2010 = 90+100=19090 + 100 = 190

More from this set:

Question 6

In 2000, what was the ratio of the number of dead males to dead females among those being tracked?

Question 8

How many individuals who were being tracked and who were less than 30 years of age in 1980 survived until 2020?

Question 9

How many of the males who were being tracked and who were between 20 and 30 years of age in 1980 died in the period 2000 to 2010?

Question 10

How many of the females who were being tracked and who were between 20 and 30 years of age in 1980 died between the ages of 50 and 60?

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