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# From ETS Paper test A certain fruit stand sold apples for

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Senior Manager
Joined: 17 Aug 2005
Posts: 388

Kudos [?]: 140 [0], given: 0

Location: Boston, MA
From ETS Paper test A certain fruit stand sold apples for [#permalink]

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03 Jun 2006, 11:14
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From ETS Paper test

A certain fruit stand sold apples for \$0.70 each and bananas for \$0.50 each. If a customer purchased both apples and bananas from the stand for a total of \$6.30, what total number of apples and bananas did the customer purchase?

A. 10
B. 11
C. 12
D. 13
E. 14

What is the fastest way to solve this? I used trial and error.

Kudos [?]: 140 [0], given: 0

Manager
Joined: 09 May 2006
Posts: 99

Kudos [?]: 43 [0], given: 0

Location: Bangalore, India

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03 Jun 2006, 11:27
B - 11

Mutliplied all values by 10 and then trial and error under given conditions.
Trying to figure out 9a + 5b = 63

Kudos [?]: 43 [0], given: 0

Manager
Joined: 10 May 2006
Posts: 186

Kudos [?]: 5 [1], given: 0

Location: USA

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03 Jun 2006, 20:27
1
KUDOS
Did this by trial and error as well.

I took the largest value, cost of apples, and multiplied it by 9 = \$6.30. This is the largest number of apples the person could have bought. However, since this person bought both apples and bananas, i kept going.

Then checked 8 apples (\$5.60) which leaves \$0.70 for bananas. Can't be the right amount since it doesn't divide evenly.

Did trial and error, until I got down to 4 apples (\$2.80) which left \$3.50 for apples. Works.

11 fruits total.

Kudos [?]: 5 [1], given: 0

03 Jun 2006, 20:27
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