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From ETS Paper test A certain fruit stand sold apples for [#permalink]
03 Jun 2006, 10:14

00:00

A

B

C

D

E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct
0% (00:00) wrong based on 0 sessions

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.

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.

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