Sunpreet19Given: Every month Raul earns a fixed amount of $P, plus a commission which includes a fixed percent of the sales he makes during that month and a fixed percent of the profit the company makes during that month. In January 2020, when the company made a profit of $500,000, Raul earned $50,000 from the sales of $100,000 he made during that month. In February 2020, when the company made a profit of $700,000, Raul earned $60,000 from the sales of $120,000 he made during that month.
Asked: In March 2020, if the company expects the profit of $600,000 and Raul estimates to make the sales of $110,000, what would be his expected total earnings for the month of March?
Let the earnings of Raul = $P + x%*Sales he made that month + y%*Profit company makes that month
In January 2020, when the company made a profit of $500,000, Raul earned $50,000 from the sales of $100,000 he made during that month.
$50,000 = $P + x%$100,000 + y%*$500,000 (1)
In February 2020, when the company made a profit of $700,000, Raul earned $60,000 from the sales of $120,000 he made during that month.
$60,000 = $P + x%*$120,000 + y%*$700,000 (2)
In March 2020, if the company expects the profit of $600,000 and Raul estimates to make the sales of $110,000, expected total earnings would be = $P + x%*$110,000 + y%*$600,000 (3)
(1) + (2)
$110,000 = $2P + x%*$220,000 + y%*$1200,000
Halving the equation, we get
$55,000 = $P + x%*$110,000 + y%*$600,000
Raul's expected earnings in March 2020 = $P + x%*$110,000 + y%*$600,000 = $55,000
IMO B