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Manager
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A certain calculator is able to display at most 10 digits, [#permalink]
 24 Jul 2011, 15:35
Question Stats:
33% (01:47) correct
66% (00:53) wrong based on 2 sessions
A certain calculator is able to display at most 10 digits, so that any number with a total of more than 10 digits before and after the decimal point cannot be displayed accurately. If x and y are positive integers less than 1,000, can the result of dividing x by y be displayed accurately on the calculator?
(1) 105 < x < 108
(2) 3 < y < 6
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Senior Manager
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Re: DS - 700 level - calculator [#permalink]
24 Jul 2011, 16:06
i think B.
statement 2 can have values either 4 or 5... which should generate a terminating decimal, whatever the value of x may be. so sufficient..
statement 1 can have values such as 106, 107... 107 when divided by 3.. will not generate a terminating #. whereas 106 when divided by 2 will generate a terminating #. so not sufficient.
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Re: DS - 700 level - calculator [#permalink]
24 Jul 2011, 22:15
A certain calculator is able to display at most 10 digits, so that any number with a total of more than 10 digits before and after the decimal point cannot be displayed accurately. If x and y are positive integers less than 1,000, can the result of dividing x by y be displayed accurately on the calculator?
(1) 105 < x < 108
(2) 3 < y < 6
From Stmt 1: if x = 106 and y = 2 then x/y can be displayed accurately
However, if x = 106 and y = 3 then x/y cannot be displayed accurately
From Stmt 2: possible value of y = 4 and 5. Any number divided by either 4 or 5 will be either an integer or a terminating decimal series. Hence suff. B
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Manager
Joined: 28 May 2011
Posts: 200
Location: United States
Concentration: General Management, International Business
GMAT 1: 720 Q49 V38
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Re: DS - 700 level - calculator [#permalink]
24 Jul 2011, 22:18
Yes, B seems straight-forward
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Re: DS - 700 level - calculator
[#permalink]
24 Jul 2011, 22:18
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