Total fish balls made = 5000.<br>
Sold on Saturday = 1950.<br><br>
&bull; Sold on Sunday = Total &minus; Saturday = 5000 &minus; 1950 = 3050<br>
&bull; More on Sunday than Saturday = Sunday &minus; Saturday<br>
&bull; = 3050 &minus; 1950 = 1100<br>
<br>
He sold 1100 more fish balls on Sunday than on Saturday.<br>
Check: 1950 + 3050 = 5000. ✓