Answer
The rate of commission is 20%.
Work Step by Step
$\frac{600}{3000}=\frac{x}{100}$
$3000x=600\times100$
$\frac{3000x}{3000}=\frac{60000}{3000}$
$x=20$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 6 - Percent - 6.6 Solving Application Problems with Percent - 6.6 Exercises - Page 439: 13
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