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QOTD#2 Maurice entered a number into his calculator and
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29 Jun 2016, 15:05
29 Jun 2016, 15:05
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39% (00:56) correct
60% (00:49) wrong based on 174 sessions
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Maurice entered a number into his calculator and erroneously divided the number by 0.03 instead of 0.0003, resulting in an incorrect result. Which of the following is a single operation that Maurice could perform on his calculator to correct the error?
Indicate all such operations.
A. Multiply the incorrect product by 100
B. Divide the incorrect product by 100
C. Multiply the incorrect product by 0.01
D. Divide the incorrect product by 0.01
Indicate all such operations.
A. Multiply the incorrect product by 100
B. Divide the incorrect product by 100
C. Multiply the incorrect product by 0.01
D. Divide the incorrect product by 0.01
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Re: QOTD#2 Maurice entered a number into his calculator and
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12 Dec 2016, 07:30
12 Dec 2016, 07:30
1
sandy wrote:
Maurice entered a number into his calculator and erroneously divided the number by 0.03 instead of 0.0003, resulting in an incorrect result. Which of the following is a single operation that Maurice could perform on his calculator to correct the error?
Indicate all such operations.
A. Multiply the incorrect product by 100
B. Divide the incorrect product by 100
C. Multiply the incorrect product by 0.01
D. Divide the incorrect product by 0.01
Indicate all such operations.
A. Multiply the incorrect product by 100
B. Divide the incorrect product by 100
C. Multiply the incorrect product by 0.01
D. Divide the incorrect product by 0.01
Show: :: OA
A and D
One approach is to choose an arbitrary value for the number that Maurice FIRST entered into his calculator BEFORE he accidentally divided by 0.03 (instead of 0.0003)
Let's say that 0.03 is that FIRST value.
So, Maurice INTENDED to divide 0.03 by 0.0003. IF he had performed the correct operation, he would have calculated 0.03/0.0003 = 100.
INSTEAD, Maurice accidentally divided 0.03 by 0.03. So, Maurice's incorrect calculation = 0.03/0.03 = 1
So, what must we do to the incorrect answer (1) in order to get the correct answer (100)?
Let's check the answer choices...
A. Multiply the incorrect product by 100. If we multiply 1 by 100, we get 100. PERFECT!
B. Divide the incorrect product by 100. If we divide 1 by 100, we get 0.01. NO GOOD
C. Multiply the incorrect product by 0.01. If we multiply 1 by 0.01, we get 0.01. NO GOOD
D. Divide the incorrect product by 0.01. If we divide 1 by 0.01, we get 100. PERFECT!
Answers are A and D
Re: QOTD#2 Maurice entered a number into his calculator and
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10 Aug 2019, 18:42
10 Aug 2019, 18:42
GreenlightTestPrep wrote:
sandy wrote:
Maurice entered a number into his calculator and erroneously divided the number by 0.03 instead of 0.0003, resulting in an incorrect result. Which of the following is a single operation that Maurice could perform on his calculator to correct the error?
Indicate all such operations.
A. Multiply the incorrect product by 100
B. Divide the incorrect product by 100
C. Multiply the incorrect product by 0.01
D. Divide the incorrect product by 0.01
Indicate all such operations.
A. Multiply the incorrect product by 100
B. Divide the incorrect product by 100
C. Multiply the incorrect product by 0.01
D. Divide the incorrect product by 0.01
Show: :: OA
A and D
One approach is to choose an arbitrary value for the number that Maurice FIRST entered into his calculator BEFORE he accidentally divided by 0.03 (instead of 0.0003)
Let's say that 0.03 is that FIRST value.
So, Maurice INTENDED to divide 0.03 by 0.0003. IF he had performed the correct operation, he would have calculated 0.03/0.0003 = 100.
INSTEAD, Maurice accidentally divided 0.03 by 0.03. So, Maurice's incorrect calculation = 0.03/0.03 = 1
So, what must we do to the incorrect answer (1) in order to get the correct answer (100)?
Let's check the answer choices...
A. Multiply the incorrect product by 100. If we multiply 1 by 100, we get 100. PERFECT!
B. Divide the incorrect product by 100. If we divide 1 by 100, we get 0.01. NO GOOD
C. Multiply the incorrect product by 0.01. If we multiply 1 by 0.01, we get 0.01. NO GOOD
D. Divide the incorrect product by 0.01. If we divide 1 by 0.01, we get 100. PERFECT!
Answers are A and D
Hi Brent,
What's the "number sense" way to solve this? I know that there is a way to think about this question without having to do any calculations or plugging in.
