Answer:
Option D
Explanation:
Total sales (in thousands numbers) of branches B1, B3 and B6 in 2000
= 80+95+70=245
Average sales (in thousands number) of branches B1, B3 and B6 in 2000
= $\frac{245}{3}$
Total sales (in thousands number) of branches B1, B2 and B3 in 2001
= 105 + 65 + 110 = 280
Average sales (in thousands number) of branches B1, B2 and B3 in 2001
= $\frac{280}{3}$
So, required percentage = $\left(\frac{245}{280}\times100\right)$ % = 87.5%