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# model A sold 3000 units and accounted for .6 of sales. model

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CEO
Joined: 21 Jan 2007
Posts: 2764
Location: New York City
Followers: 9

Kudos [?]: 349 [0], given: 4

model A sold 3000 units and accounted for .6 of sales. model [#permalink]  23 Dec 2007, 03:22
model A sold 3000 units and accounted for .6 of sales.
model B sold 1000 units and accounted for .4 of sales.
If A sold 1000 less than it actually did, what percent of sales would A have accounted for?
SVP
Joined: 29 Aug 2007
Posts: 2497
Followers: 57

Kudos [?]: 555 [1] , given: 19

Re: sales [#permalink]  23 Dec 2007, 11:03
1
KUDOS
bmwhype2 wrote:
model A sold 3000 units and accounted for .6 of sales.
model B sold 1000 units and accounted for .4 of sales.
If A sold 1000 less than it actually did, what percent of sales would A have accounted for?

total sales = x
sales of A:
3000A = 0.6x
x = 5000A

sales of B:
1000B = 0.4x
x = 2500B

5000A = 2500B
A = 0.5B

Now:
sales of A = 2000A = 2000(0.5B) = 1000B
sales of B = 1000B
total sales = 2000B
so the % of A's sales = 1000B/2000B = 50%
CEO
Joined: 21 Jan 2007
Posts: 2764
Location: New York City
Followers: 9

Kudos [?]: 349 [0], given: 4

Re: sales [#permalink]  23 Dec 2007, 16:58
GMAT TIGER wrote:
bmwhype2 wrote:
model A sold 3000 units and accounted for .6 of sales.
model B sold 1000 units and accounted for .4 of sales.
If A sold 1000 less than it actually did, what percent of sales would A have accounted for?

total sales = x
sales of A:
3000A = 0.6x
x = 5000A

sales of B:
1000B = 0.4x
x = 2500B

5000A = 2500B
A = 0.5B

Now:
sales of A = 2000A = 2000(0.5B) = 1000B
sales of B = 1000B
total sales = 2000B
so the % of A's sales = 1000B/2000B = 50%

SVP
Joined: 04 May 2006
Posts: 1936
Schools: CBS, Kellogg
Followers: 19

Kudos [?]: 434 [0], given: 1

Re: sales [#permalink]  23 Dec 2007, 21:00
GMAT TIGER wrote:
bmwhype2 wrote:
model A sold 3000 units and accounted for .6 of sales.
model B sold 1000 units and accounted for .4 of sales.
If A sold 1000 less than it actually did, what percent of sales would A have accounted for?

total sales = x
sales of A:
3000A = 0.6x
x = 5000A

sales of B:
1000B = 0.4x
x = 2500B

5000A = 2500B
A = 0.5B

Now:
sales of A = 2000A = 2000(0.5B) = 1000B
sales of B = 1000B
total sales = 2000B
so the % of A's sales = 1000B/2000B = 50%

Yes, it is very helpful. Thank you Tiger
Re: sales   [#permalink] 23 Dec 2007, 21:00
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