Answer:
$500 000
Step-by-step explanation:
Let r = revenue
and c = costs
and n = number of units. Then
r = 50n and
c = 40n + 100 000
At the break-even point,
r = c
50n = 40n + 100 000
10n = 100 000
n = 10 000
The break-even point is reached at 10 000 units. At that point,
r = 50n =50 × 10 000 = 500 000
A sales revenue of $500 000 is needed to break even.