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 + b = 15 and 2a – b = 6, what is the value of b ?
[#permalink]
22 Apr 2020, 13:17
22 Apr 2020, 13:17
Expert Reply
1
Bookmarks
00:00
Question Stats:
89% (00:55) correct
10% (01:11) wrong based on 47 sessions
Hide Show timer Statistics
If \(a + b = 15\) and \(2a – b = 6\), what is the value of b ?
A. 6
B. 7
C. 8
D. 9
E. 10
A. 6
B. 7
C. 8
D. 9
E. 10
Re: If a + b = 15 and 2a – b = 6, what is the value of b ?
[#permalink]
23 Apr 2020, 01:01
23 Apr 2020, 01:01
1
a + b = 15, it can be written as:
2a+2b = 30.
2a-b = 6
On subtracting, we get 3b = 24. Thus, b = 8. Thus, C is the answer.
2a+2b = 30.
2a-b = 6
On subtracting, we get 3b = 24. Thus, b = 8. Thus, C is the answer.
Re: If a + b = 15 and 2a – b = 6, what is the value of b ?
[#permalink]
23 Apr 2020, 03:18
23 Apr 2020, 03:18
Ans choice c is right.
Posted from my mobile device
Posted from my mobile device
