Final answer:
To find the sales amount at which Abel and Ali earn the same daily amount, set up an equation and solve for x. The sales amount where they both earn the same daily amount is birr 1700.
Step-by-step explanation:
To find the sales amount at which Abel and Ali earn the same daily amount, we need to set up an equation.
Let x be the sales amount.
Abel's total daily amount is given by: 120 + 0.04x.
Ali's total daily amount is given by: 132 + (0.08 * (x - 1000)).
To find the sales amount where they both earn the same daily amount, we can set up the equation:
120 + 0.04x = 132 + (0.08 * (x - 1000)).
Solving for x:
0.04x - 0.08x + 80 = 12.
-0.04x = -68.
x = 68 / 0.04 = 1700.
Therefore, they would both earn the same daily amount for a sales amount of birr 1700.