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# For any positive number x, the function [x] denotes the greatest

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Senior Manager
Joined: 18 Feb 2019
Posts: 378
Location: India
GMAT 1: 460 Q42 V13
GPA: 3.6
For any positive number x, the function [x] denotes the greatest  [#permalink]

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14 Apr 2019, 07:38
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Question Stats:

0% (00:00) correct 100% (03:37) wrong based on 1 sessions

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For any positive number x, the function [x] denotes the greatest integer less than or equal to x. For example, [1] = 1, [1.367] = 1 and [1.999] = 1.
If k is a positive integer such that k^2 is divisible by 45 and 80, what is the units digit of [k^3/4000]?

A.0
B. 1
C. 27
D. 54
E. Cannot be determined
Math Expert
Joined: 02 Sep 2009
Posts: 55262
Re: For any positive number x, the function [x] denotes the greatest  [#permalink]

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14 Apr 2019, 08:57
kiran120680 wrote:
For any positive number x, the function [x] denotes the greatest integer less than or equal to x. For example, [1] = 1, [1.367] = 1 and [1.999] = 1.
If k is a positive integer such that k^2 is divisible by 45 and 80, what is the units digit of [k^3/4000]?

A.0
B. 1
C. 27
D. 54
E. Cannot be determined

Discussed here: https://gmatclub.com/forum/for-any-posi ... fl=similar
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Re: For any positive number x, the function [x] denotes the greatest   [#permalink] 14 Apr 2019, 08:57
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