1.  What percent of the average sales of branches B1, B2 and B3 in 2001 is the average sales of branches B1, B3 and B6 in 2000?
A. 75%
B. 77.5%
C. 82.5%
D. 87.5%
E. 85%

Answer: Option D

Explanation:

Average sales (in thousand number) of branches B1, B3 and B6 in 2000

    =1x (80 + 95 + 70)=(245).
33

Average sales (in thousand number) of branches B1, B2 and B3 in 2001

    =1x (105 + 65 + 110)=(280).
33


Therefore Required percentage =[245/3x 100]%





280/3





=(245x 100)% = 87.5%.

280