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Data Interpretation - Bar Charts

Exercise : Bar Charts - Bar Chart 11
Directions to Solve

Study the bar chart and answer the questions.

Sale of Cellular Phones

1.
The difference in the sales of cellular phones for the years 1997 and 1999 is ?
500 units
1,000 units
5,000 units
18,000 units
Answer: Option
Explanation:
The required answer is got by 48,000 - 30,000 = 18,000.
2.
The two years between which the rate of change of cellular phones is minimum are ?
1997 and 1998
1999 and 2000
Both option (A) and (B)
2001 and 2002
Answer: Option
Explanation:

The lowest rate of change for

For year 1997 and 1998 = ((48000 - 40000) / 40000) x 100 = 20%

For year 1999 and 2000 = ((30000 - 25000) / 25000) x 100 = 20%

is exhibited by both option (A) and (B).

3.
The sum of sales of cellular phones in the years 1999 and 2001 is equal to that in ?
1997
1998
2000
2002
Answer: Option
Explanation:
The sum of sales in the two years is 30,000 + 18,000 = 48,000, which is the sales value for 1997.
4.
The percentage increases in sales from 2001 to 2002 was ?
115 %
128 %
122 %
118 %
Answer: Option
Explanation:

The percentage increase exhibited is

((40 - 18)/18) x 100 = 122 % approximately.

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