1.  The percentage of 4AH batteries sold to the total number of batteries sold was maximum in the year?
A. 1994
B. 1995
C. 1996
D. 1997
E. 1998

Answer: Option D

Explanation:

The percentages of sales of 4AH batteries to the total sales in different years are:

For 1992 = ( 75 x 100 ) % = 13.81%.
543

For 1993 = ( 90 x 100 ) % = 17.05%.
528

For 1994 = ( 96 x 100 ) % = 18.29%.
525

For 1995 = ( 105 x 100 ) % = 20.59%.
510

For 1996 = ( 96 x 100 ) % = 19.35%.
465

For 1997 = ( 105 x 100 ) % = 21.21%.
495

For 1998 = ( 115 x 100 ) % = 19.01%.
605

Clearly, the percentage is maximum in 1997.