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Data Interpretation MCQ Questions and Answers - Bar Chart

Learn Bar Chart Data Interpretation mcq question and answers with easy and logical explanations Page-3 section-1

Directions (1 - 3): Purana and Naya two brand of mixer-grinder available in the market. Purana was introduced in 1990 and Naya was introduced in 1997. For both brands, 20% of the mixer-grinder bought in a particular year are disposed off as junk exactly two year later. It is known that 10 Purana mixer-grinder were disposed off in 1997. The following chart show the operation from 1995 to 2000, as at end of the year.
Bar Chart direction image
1
How many Naya mixer-grinder disposed off by end of 2000 ?
Discuss
Answer & Solution
In the year 1998, (75 - 25) = 50 mixer-grinder purchased.
Then, In 2000, 20% of 50 disposed off = 10.
Similarly, number of mixer grinder purchased in 1997 is 25.
Number of mixer-grinder disposed in 1999 = 20% of 25 = 5.
Total number of mixer-grinder disposed off at end of 2000
= 10 + 5
= 15
2
How many Naya mixer-grinders were purchased in 1999?
Discuss
Answer & Solution
It is given that 20% of the mixer-grinders are disposed off after 2 years.
There for in 1999, 5 mixer-grinder disposed off (20% of 25).
Also the number of mixer grinder in circulation in 1999 was 120 and 1998 was 75. The difference is 45.
The total number of mixer-grinder purchased is (45 + 5) = 50
3
How many Purana mixer-grinder disposed off in 2000?
Discuss
Answer & Solution
Since, information of Purana mixer-grinder is not given for the even-numbered years (1996, 1998, etc), the number of mixer-grinder disposed off in 2000 cannot determined.