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29 Mar 2016, 03:11
Kudos
Bookmarks
C
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:
79% (01:32) correct
21%
(02:10)
wrong
based on 558
sessions
History
Date
Time
Result
Not Attempted Yet
Which of the following is the lowest positive integer that is divisible by 8, 9, 10, 11, and 12?
A. 7,920
B. 5,940
C. 3,960
D. 2,970
E. 890
A. 7,920
B. 5,940
C. 3,960
D. 2,970
E. 890
Aves
Joined: 08 Jan 2015
Last visit: 02 Dec 2023
Posts: 70
Given Kudos: 654
Location: Thailand
Schools: Duke '19 (A) HKU MBA"19 (A$)
GMAT 1: 540 Q41 V23
GMAT 2: 570 Q44 V24
GMAT 3: 550 Q44 V21
GMAT 4: 660 Q48 V33
GPA: 3.31
WE:Science (Other)
29 Mar 2016, 19:18
Kudos
Bookmarks
The question basically asks for the LCM of these numbers.
\(8 = 2 * 2 * 2\)
\(9 = 3 * 3\)
\(10 = 2 * 5\)
\(11 = 11\)
\(12 = 2 * 2 *3\)
LCM = \(2 * 2 * 2 *3 *3 * 5 * 11 = 3960\)
\(8 = 2 * 2 * 2\)
\(9 = 3 * 3\)
\(10 = 2 * 5\)
\(11 = 11\)
\(12 = 2 * 2 *3\)
LCM = \(2 * 2 * 2 *3 *3 * 5 * 11 = 3960\)
General Discussion
29 Mar 2016, 04:44
Kudos
Bookmarks
Lets start with the smallest number:
890 - Not divisible by 12 (3 * 4) as the number is not divisible by 3.
2970 - Not divisible by 8 as the last three digits are not divisible by 8
3960 - Divisible by 3, 4, 8, 9, 10 and 11.
Answer: C
890 - Not divisible by 12 (3 * 4) as the number is not divisible by 3.
2970 - Not divisible by 8 as the last three digits are not divisible by 8
3960 - Divisible by 3, 4, 8, 9, 10 and 11.
Answer: C
