# Bar Graph Questions for CAT

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Bar Graph Questions for CAT:

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.Â 44

B.Â 50

C. 55

D. 64

Question 2:

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

A.Â 10

B.Â 16

C.Â 22

D.Â 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.Â Cannot be determined from the data

Question 4:

How many Purana mixer-grinders were purchased in 1999?

A.Â 20

B.Â 23

C.Â 50

D.Â Cannot be determined from the data

Solutions:

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.

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.