Let's assume his salary before the increase was x.
After a 20% increase, his new salary is x + (20/100)*x = (120/100)*x.
Knowing that his total earnings were 90000sh, we can set up the equation:
x + (120/100)*x = 90000sh.
Solving for x, we have:
(220/100)*x = 90000sh.
Multiplying both sides of the equation by 100/220, we get:
x = (90000sh * (100/220)) = 40909.1sh.
Therefore, his salary before the increase was 40909.1sh.
To calculate the total amount received from the sale, we need to subtract his salary before the increase from his total earnings:
Total amount received from the sale = 90000sh - 40909.1sh = 49090.9sh.
Thus, the total amount received from the sale is 49090.9sh.
The following month he salary was increase by20%. If his total earnings were 90000sh. Calculate the total amount received from the sale
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