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# A salesman makes a 20 percent commission on the selling price of each

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Senior PS Moderator
Joined: 26 Feb 2016
Posts: 3333
Location: India
GPA: 3.12
A salesman makes a 20 percent commission on the selling price of each  [#permalink]

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Updated on: 31 Oct 2018, 22:25
2
00:00

Difficulty:

5% (low)

Question Stats:

93% (01:18) correct 7% (02:30) wrong based on 35 sessions

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A salesman makes a 20 percent commission on the selling price of each set of encyclopedias he sells. If he sells 12 identical sets of encyclopedias and makes $1800 in commissions, what is the selling price of each set? A.$300
B. $600 C.$750
D. $900 E.$1080

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Originally posted by pushpitkc on 31 Oct 2018, 19:42.
Last edited by Bunuel on 31 Oct 2018, 22:25, edited 1 time in total.
EDITED.
Director
Joined: 04 Dec 2015
Posts: 743
Location: India
Concentration: Technology, Strategy
WE: Information Technology (Consulting)
Re: A salesman makes a 20 percent commission on the selling price of each  [#permalink]

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31 Oct 2018, 19:54
pushpitkc wrote:
A salesman makes a 20 percent commission on the selling price of each set of encyclopedias
he sells. If he sells 12 identical sets of encyclopedias and makes $1800 in commissions, what is the selling price of each set? A.$300
B. $600 C.$750
D. $900 E.$1080

Let the price of $$1$$ encyclopedia be $$= x$$

Commission on $$1$$ encyclopedia $$= \frac{20}{100} x = \frac{1}{5} x$$

Given total commission $$= 1800$$

Therefore commission on $$12$$ encyclopedia $$= 12 * \frac{1}{5} x = 1800$$

$$x = \frac{1800 * 5}{12} = 750$$

Manager
Joined: 24 Dec 2017
Posts: 185
Location: India
Concentration: Strategy, Real Estate
Schools: Johnson '21
Re: A salesman makes a 20 percent commission on the selling price of each  [#permalink]

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31 Oct 2018, 22:36
=>0.20 * 12x = 1800
=>2.40x = 1800
=>x = 1800/2.40
=>750

IMO C
Re: A salesman makes a 20 percent commission on the selling price of each   [#permalink] 31 Oct 2018, 22:36
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