Bar Graph Questions for CAT

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Bar Graph Questions for CAT
Bar Graph Questions for CAT

The Bar Graph is one of the most commonly used visual representations of data in the CAT exam’s Data Interpretation and Logical Reasoning (LRDI) section. CAT aspirants must be proficient in interpreting and analyzing Bar Graphs to score well in this section. To help aspirants prepare for Bar Graph-related questions in the CAT exam, we have compiled a collection of Bar Graph Questions PDF with detailed solutions. In this article, we will provide you with the most important Bar Graph questions to practice for CAT exam. By studying and solving these questions, CAT aspirants can enhance their problem-solving skills and improve their chances of scoring higher in the LRDI section of the CAT exam.

 

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Instructions:

For the following four questions: Answer the questions on the basis of the information given below.


Purana and Naya are two brands of kitchen mixer-grinders available in the local market. Purana is an old brand that was introduced in 1990, while Naya was introduced in 1997. For both these brands, 20% of the mixer-grinders bought in a particular year are disposed off as junk exactly two years later. It is knows that 10 Purana mixer-grinders were disposed off in 1997. The following figures show the number of Purana and Naya mixer-grinders in operation from 1995 to 2000, as at the end of the year.

Question 1:

How many Naya mixer-grinders were purchased in 1999?

A. 44

B. 50

C. 55

D. 64

Question 2:

How many Naya mixer-grinders were disposed off by the end of 2000?

A. 10

B. 16

C. 22

D. Cannot be determined from the data

Question 3:

How many Purana mixer-grinders were disposed off in 2000?

A. 0

B. 5

C. 6

D. Cannot be determined from the data

Question 4:

How many Purana mixer-grinders were purchased in 1999?

A. 20

B. 23

C. 50

D. Cannot be determined from the data

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Solutions:

1) Answer (B)

There were 30 naya mixture in 97′ which will also work in 98′
,thus we have 50 new mixtures in 98′ . Now in 99′ 20% of 30
i.e. 6 are thrown in junk . So in 99′ we have 24 + 50 = 74
naya mixtures of previous years. So naya mixture grinder
purchased in 99′ is 124-74 = 50. Hence option b.

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2) Answer (B)

Number of Naya mixer-grinders were disposed off by the end
of 1999 are 6 and at the end of 2000 are 10. So in total 16
naya mixer disposed off.

3) Answer (D)

Since 10 purana were disposed off in 1997, it means 50 new
have been bought in 1995, which implies that 70 were
already in use. The breakup of 70 purana cannot be
determined. So the number of purana disposed in 2000
cannot be calculated.

4) Answer (A)

Purana mixer-grinders were purchased in 1999 = 236 – 222 +Disposed in 1999
= 236-222 + 20%(Purana mixer-grinders were purchased in 1997)
= 236 – 222 + 20%(182 – 162 + 10) = 236- 222 + 6 = 20.
Hence option D.

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