Problem: A sales person’s monthly salary is Tk. 5,000. He earns as commission 5% on all sales between Tk. 20,000 and 69,999 and 8% on all sales exceeding Tk. 60,000. In addition, he \gets a fixed bonus of Tk. 1,000 if his monthly sales exceeds Tk. 10,000. If in a month his total income was Tk. 10,400, what was his total sales?
View all: MERCANTILE BANK | PROBETIONARY OFFICER | WRITTEN MATH SOLVE | 2003
Correct Answer: TK 90000
Explanation:
Total income = 10,400
Monthly salary = 5,000
Commission = (10,400 —- 5,000) = 5,400
Let, sales in a month = x
According to the question,
5% of 60,000 + 8% of (x – 60,000) = 5,400
=> 0.05 x 6,0000 + .08% x (x — 60,000) = 5,400
=> 3,000.00 + .08x- 4,800 = 5,400
=> 0.08x = 7,200
x =$\frac{7200 \cdot 100}{8}$ = 90,000
