Study the bar chart and answer the questions.
Sale of Cellular Phones
The two years between which the rate of change of cellular phones is minimum are ?
A.
1997 and 1998
B.
1999 and 2000
C.
Both option (A) and (B)
D.
2001 and 2002
Correct answer is C
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).