GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
If a and b are integers such that a > b > 1, which of the fo
[#permalink]
12 Aug 2018, 15:40
12 Aug 2018, 15:40
1
Expert Reply
3
Bookmarks
00:00
Question Stats:
40% (00:59) correct
59% (01:03) wrong based on 74 sessions
Hide Show timer Statistics
If a and b are integers such that a > b > 1, which of the following cannot be a multiple of either a or b?
(A) a – 1
(B) b + 1
(C) b – 1
(D) a + b
(E) ab
(A) a – 1
(B) b + 1
(C) b – 1
(D) a + b
(E) ab
Re: If a and b are integers such that a > b > 1, which of the fo
[#permalink]
15 Aug 2018, 08:14
15 Aug 2018, 08:14
1
Expert Reply
Explanation
Since a positive multiple must be greater than or equal to the number it is a multiple of, answer choice (C) cannot be a multiple of a or b, as it is smaller than both integers a and b.
Alternatively, try testing numbers such that a is larger than b:
(A) If a = 3 and b = 2, a – 1 = 2, which is a multiple of b.
(B) If a = 3 and b = 2, b + 1 = 3, which is a multiple of a.
(C) Is the correct answer by process of elimination.
(D) If a = 4 and b = 2, a + b = 6, which is a multiple of b.
(E) If a = 3 and b = 2, ab = 6, which is a multiple of both a and b.
Since a positive multiple must be greater than or equal to the number it is a multiple of, answer choice (C) cannot be a multiple of a or b, as it is smaller than both integers a and b.
Alternatively, try testing numbers such that a is larger than b:
(A) If a = 3 and b = 2, a – 1 = 2, which is a multiple of b.
(B) If a = 3 and b = 2, b + 1 = 3, which is a multiple of a.
(C) Is the correct answer by process of elimination.
(D) If a = 4 and b = 2, a + b = 6, which is a multiple of b.
(E) If a = 3 and b = 2, ab = 6, which is a multiple of both a and b.
Re: If a and b are integers such that a > b > 1, which of the fo
[#permalink]
19 May 2021, 08:37
19 May 2021, 08:37
How C can be an answer:
If a=4,b=3 then as per C (3-1=2) which is a multiple of a, can anyone pls explain
If a=4,b=3 then as per C (3-1=2) which is a multiple of a, can anyone pls explain
