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.
Integers s, t, and u have ones’ digits 1, 3, and 9, respectively. Whic
[#permalink]
14 Dec 2021, 01:12
14 Dec 2021, 01:12
Expert Reply
00:00
Question Stats:
80% (01:42) correct
20% (01:21) wrong based on 10 sessions
Hide Show timer Statistics
Integers s, t, and u have ones’ digits 1, 3, and 9, respectively. Which of the following can be true?
I. s, t, and u can be multiples of 11.
II. s, t, and u can be prime numbers.
III. s, t, and u can be powers of 7.
(A) I only
(B) II only
(C) III only
(D) II and III only
(E) I, II, and III
I. s, t, and u can be multiples of 11.
II. s, t, and u can be prime numbers.
III. s, t, and u can be powers of 7.
(A) I only
(B) II only
(C) III only
(D) II and III only
(E) I, II, and III
Re: Integers s, t, and u have ones’ digits 1, 3, and 9, respectively. Whic
[#permalink]
14 Dec 2021, 12:09
14 Dec 2021, 12:09
2
Expert Reply
Let's check each condition one by one.
Condition I:
Yes, s, t, and u can be multiples of 11. i.e., s=11, t=33, u=99
Condition II:
Yes, s, t, and u can be prime numbers. i.e., s=11, t=13, u=19
Condition III:
Yes, s, t, and u can be powers of 7. i.e., \(7^2=49\), \(7^3=343\), \(7^4=2401\)
Hence, the answer is E.
Condition I:
Yes, s, t, and u can be multiples of 11. i.e., s=11, t=33, u=99
Condition II:
Yes, s, t, and u can be prime numbers. i.e., s=11, t=13, u=19
Condition III:
Yes, s, t, and u can be powers of 7. i.e., \(7^2=49\), \(7^3=343\), \(7^4=2401\)
Hence, the answer is E.
gmatclubot
Re: Integers s, t, and u have ones’ digits 1, 3, and 9, respectively. Whic [#permalink]
14 Dec 2021, 12:09
Moderators:
