Data Over Years questions are a category of Data Interpretation (DI) questions that frequently appear in the LRDI section of the CAT exam. These types of questions necessitate that candidates analyze data over multiple years to arrive at informed decisions based on the information provided. To assist CAT aspirants in preparing for this type of question, we are offering a compilation of Data Over Years Questions for CAT. This article will provide you with the most important Data Over Years questions to prepare for the CAT exam. By studying these questions, aspirants can enhance their skills in solving Data Over Years-related problems and increase their chances of securing a higher score in the LRDI section of the CAT exam.

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**Instructions:**

The following table gives the national income and the population of a country for the years 1984 â€“ 85 to 1989 â€“ 90. For each of the following questions choose the best alternative:

**Question 1:**

The increase in the per capita income compared to the previous year is lowest for the year :

a) 1985-86

b) 1986-87

c) 1987-88

d) 1989-90

**Question 2:**

The per capita income is highest for the year :

a) 1984-85

b) 1985-86

c) 1987-88

d) 1989-90

**Question 3:**

The difference between the percentage increase in per capita income and the percentage increase in the population compared to the previous year is highest for the year:

a) 1985-86

b) 1986-87

c) 1987-88

d) 1988-89

**Question 4:**

The rate of increase in population was lowest in the year:

a) 1985-86

b) 1987-88

c) 1989-90

d) None of these

**Question 5:**

Increase in the per capita income compared to the previous year among the years given below was highest for the year:

a) 1985-86

b) 1986-87

c) 1987-88

d) 1988-89

**Answers and Solutions for Average Questions For Bank Clerk:**

**Solutions :**

**1)** Answer (B)

For increment in 1986-87, denominator is increased by 2 whereas in every other year it is either increased by 1 or 1.5

Since numerator has increased by 30, which is similar to that of other years, we can say lowest increment occur in the year 1986-1987.

**2)** Answer (D)

The per capita of each of the following years is given below.

1984-85 is Rs. 3,098

1985-86 is Rs. 3,482

1986-87 is Rs. 3,786

1987-88 is Rs. 4,203

1988-89 is Rs. 4,857

1989-90 is Rs. 5,319

Hence, the percapita income is highest for the year 1989-90

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**3)** Answer (D)

The per capita of each of the following years is given below.

1984-85 is Rs. 3,098

1985-86 is Rs. 3,482 (increased by 12.42%)

1986-87 is Rs. 3,786 (increased by 8.73%)

1987-88 is Rs. 4,203 (increased by 11.00%)

1988-89 is Rs. 4,857 (increased by 15.55%)

1989-90 is Rs. 5,339 (increased by 9.92%)

The percentage increase in population over the years is fairly constant and varied between 1% and 2%. But the percentage increase in GDP per capita in the year 1988-89 is significantly higher. Hence, the correct answer is 1988-89

**4)** Answer (A)

The population increase for the year 1985-86 from the year 1984-85 is just one crore.

In every other year, the population increase was either 1.5 crore of 2 crores.

Note that the denominators for each of the years (ie total population) is fairly same.

Hence, the correct answer is 1985-86

**5)** Answer (D)

The per capita of each of the following years is given below.

1984-85 is Rs. 3,098

1985-86 is Rs. 3,482 (increased by Rs. 384)

1986-87 is Rs. 3,786 (increased by Rs. 304)

1987-88 is Rs. 4,203 (increased by Rs. 416)

1988-89 is Rs. 4,857 (increased by Rs. 653)

1989-90 is Rs. 5,339 (increased by Rs. 481)

Hence, the increase is highest for the year 1988-89