Question

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%

Answer 1

The correct option is D 87.5%

Average sales (in thousand number) of branches B1, B3 and B6 in 2000
$=\frac{1}{3}\times (80+95+70)=\left(\frac{245}{3}\right)$
Average sales (in thousand number) of branches B1, B2 and B3 in 2001
$=\frac{1}{3}\times (105+65+110)=\left(\frac{280}{3}\right)$
$\therefore$ Required percentage $=[\frac{245/3}{280/3}\times 100]$%$=(\frac{245}{280}\times 100)$% = 87.5%