What is the difference in the sales of cellular phones for the years $1997$ and $1999$ ?

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500

units

1, 000

units

5, 000

units

18, 000

units

answer is D.

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Detailed Solution

The provided graph displays cell phone sales for the years 1997, 1998, 1999, 2000, 2001 and 2002 as below.
Question Image

The number of cell phones sold in 1997 is 48,000.
The number of cell phones sold in 1999 is 30,000.
Thus, the difference in the sale is,
= 48,000 – 30,000
= 18,000 units
Thus, the difference in the sale of cell phones in the year 1997 to 1999 is 18,000 units.
Therefore, the correct option is 4.

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