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17 Oct 2012, 07:05
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
15%
(low)
Question Stats:
75% (01:11) correct
25%
(01:11)
wrong
based on 348
sessions
History
Date
Time
Result
Not Attempted Yet
What is the thousandths digit of the decimal p ?
(1) p is equivalent to the fraction 4/7.
(2) The units digit of 100p is 2.
"GMAT Hacks " Daily Question:-
(1) p is equivalent to the fraction 4/7.
(2) The units digit of 100p is 2.
"GMAT Hacks " Daily Question:-
Answer: A
Statement (1) is sufficient. It would require long division to determine the thousandths digit of 4/7, but since 4/7 is a specific real number, we should realize that we could do so.
Statement (2) is insufficient. Say that 100p = 112.11, for one example when the units digit is 100p is 2. We're interested in p, so divide both sides by 100:
p = 112/100 = 1.1211
The thousandths digit is 1--but remember that we invented that digit for the purpose of an example. It could just as easily have been any other integer. Choice (A) is correct.
Statement (1) is sufficient. It would require long division to determine the thousandths digit of 4/7, but since 4/7 is a specific real number, we should realize that we could do so.
Statement (2) is insufficient. Say that 100p = 112.11, for one example when the units digit is 100p is 2. We're interested in p, so divide both sides by 100:
p = 112/100 = 1.1211
The thousandths digit is 1--but remember that we invented that digit for the purpose of an example. It could just as easily have been any other integer. Choice (A) is correct.
17 Oct 2012, 07:25
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What is the thousandths digit of the decimal p ?
(1) p is equivalent to the fraction 4/7. We are given the exact value of p, thus we can find its thousandths digit. Sufficient.
(2) The units digit of 100p is 2. Say p=a.bcd, the thousandths digit would be d. Given that the units digit of 100p=abc.d is 2, thus we have that c=2, but we need d. Not sufficient.
Answer: A.
Similar questions to practice:
what-is-the-hundredths-digit-of-the-decimal-z-93374.html
what-is-the-hundredths-digit-of-the-decimal-m-128272.html
what-is-the-hundredths-digit-of-th-decimal-z-126671.html
is-the-hundredths-digit-of-the-decimal-d-greater-than-102268.html
what-is-the-tens-digit-of-the-positive-integer-r-101570.html
what-is-the-hundreths-digit-of-the-decimal-m-1-the-101455.html
if-a-is-a-positive-integer-and-if-the-units-digit-of-a-2-is-109036.html
if-d-represents-the-hundredths-digit-and-e-represents-the-116821.html
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if-digit-h-is-the-hundredths-digit-in-the-decimal-d-0-2h6-101957.html
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if-1-d-2-is-the-tenths-digit-of-the-decimal-131532.html
(1) p is equivalent to the fraction 4/7. We are given the exact value of p, thus we can find its thousandths digit. Sufficient.
(2) The units digit of 100p is 2. Say p=a.bcd, the thousandths digit would be d. Given that the units digit of 100p=abc.d is 2, thus we have that c=2, but we need d. Not sufficient.
Answer: A.
Similar questions to practice:
what-is-the-hundredths-digit-of-the-decimal-z-93374.html
what-is-the-hundredths-digit-of-the-decimal-m-128272.html
what-is-the-hundredths-digit-of-th-decimal-z-126671.html
is-the-hundredths-digit-of-the-decimal-d-greater-than-102268.html
what-is-the-tens-digit-of-the-positive-integer-r-101570.html
what-is-the-hundreths-digit-of-the-decimal-m-1-the-101455.html
if-a-is-a-positive-integer-and-if-the-units-digit-of-a-2-is-109036.html
if-d-represents-the-hundredths-digit-and-e-represents-the-116821.html
in-the-decimal-representation-of-x-where-0-x-1-is-the-99281.html
if-digit-h-is-the-hundredths-digit-in-the-decimal-d-0-2h6-101957.html
if-t-denotes-the-thousandths-digit-in-the-decimal-138297.html
if-1-d-2-is-the-tenths-digit-of-the-decimal-131532.html
General Discussion
17 Oct 2012, 07:31
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Thank a lot for sharing this huge collection.Kudos +1 for you !!!
