1.  The total production of flavour Z in 1997 and 1998 is what percentage of the total production of flavour X in 1995 and 1996?

A. 96.67%
B. 102.25%
C. 115.57%
D. 120%
E. 133.33%

Answer: Option E

Explanation:

Required percentage
=[(60 + 60)x 100]%
(50 + 40)
=[120x 100]%
90
= 133.33%.