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.
A purse contains 5-cent coins and 10-cent coins
[#permalink]
20 Jul 2022, 09:38
20 Jul 2022, 09:38
2
Bookmarks
00:00
Question Stats:
87% (02:43) correct
12% (02:06) wrong based on 8 sessions
Hide Show timer Statistics
A purse contains 5-cent coins and 10-cent coins worth a total of $1.75. If the 5-cent coins were replaced with 10-cent coins and the 10-cent coins were replaced with 5-cent coins, the coins would be worth a total of $2.15. How many coins are in the purse?
(A) 26
(B) 27
(C) 28
(D) 29
(E) 30
(A) 26
(B) 27
(C) 28
(D) 29
(E) 30
Re: A purse contains 5-cent coins and 10-cent coins
[#permalink]
20 Jul 2022, 09:43
20 Jul 2022, 09:43
1
1
Bookmarks
Solution -
Let the number of 5 cent coins be a and the number of 10 cent coins be b
We have been given that 5a + 10b = 175 (total value in cents)
On reversing the numbers we get 5b + 10a = 215 (total value in cents)
Add both the equations to get 15(a + b) = 390
Therefore, a + b = 26
Answer Choice - A
Let the number of 5 cent coins be a and the number of 10 cent coins be b
We have been given that 5a + 10b = 175 (total value in cents)
On reversing the numbers we get 5b + 10a = 215 (total value in cents)
Add both the equations to get 15(a + b) = 390
Therefore, a + b = 26
Answer Choice - A
Re: A purse contains 5-cent coins and 10-cent coins
[#permalink]
27 Jun 2025, 13:24
27 Jun 2025, 13:24
Hello from the GRE Prep Club BumpBot!
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
