Answer:
The initial velocity as a percentage of Vmax is 1100%
Explanation:
From Michaelis Menten equation,
Vo = Vmax[S]/Km+[S]
Vo/Vmax = [S]/Km+[S]
Expressing the initial velocity as a percentage of Vmax is
Vmax/Vo = Km+[S]/[S] × 100
[S] = Km/10
Km = 10[S]
Vmax/Vo = 10[S]+[S]/[S] × 100 = 11[S]/[S] ×100 = 11×100 = 1100%