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If a photocopier makes 2 copies in [m][fraction]1/3[/fractio
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18 Jun 2020, 09:23
18 Jun 2020, 09:23
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Question Stats:
89% (00:52) correct
10% (00:48) wrong based on 58 sessions
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If a photocopier makes 2 copies in \(\frac{1}{3}\) second, then, at the same rate, how many copies does it make in 4 minutes?
(A) 360
(B) 480
(C) 576
(D) 720
(E) 1,440
(A) 360
(B) 480
(C) 576
(D) 720
(E) 1,440
Re: If a photocopier makes 2 copies in [m][fraction]1/3[/fractio
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18 Jun 2020, 09:25
18 Jun 2020, 09:25
Expert Reply
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If a photocopier makes 2 copies in [m][fraction]1/3[/fractio
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18 Jun 2020, 09:43
18 Jun 2020, 09:43
1
Carcass wrote:
If a photocopier makes 2 copies in \(\frac{1}{3}\) second, then, at the same rate, how many copies does it make in 4 minutes?
(A) 360
(B) 480
(C) 576
(D) 720
(E) 1,440
(A) 360
(B) 480
(C) 576
(D) 720
(E) 1,440
We solve this question with equivalent ratios
We'll first convert 4 minutes to SECONDS in order to use the same units of measurement throughout the solution.
1 minute = 60 seconds
So, 4 minutes = 240 seconds.
Now let's set up and equation using the ratio # of copies/time in seconds
Let x = the number of copies made in 4 minutes (aka 240 seconds)
We get: 2/(1/3) = x/240
Cross multiply to get: (1/3)(x) = (2)(240)
Simplify: x/3 = 480
Multiply both sides by 3 to get: x = 1440
Answer: E
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