Events & Promotions
|
|
GMAT 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.
Apr 2512:30 AM EDT
-01:30 AM EDT
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Apr 2610:00 AM EDT
-11:00 AM EDT
The Target Test Prep course represents a quantum leap forward in GMAT preparation, a radical reinterpretation of the way that students should study. Try before you buy with a 5-day, full-access trial of the course for FREE!
Apr 2711:00 AM EDT
-12:00 PM EDT
Prefer video-based learning? The Target Test Prep OnDemand course is a one-of-a-kind video masterclass featuring 400 hours of lecture-style teaching by Scott Woodbury-Stewart, founder of Target Test Prep and one of the most accomplished GMAT instructors
Apr 2808:00 AM PDT
-11:00 AM PDT
Whether you are just beginning your MBA journey or fine-tuning your path to a 700+ score, GMAT Day is designed to give you a competitive edge.
12 Apr 2015, 14:06
Kudos
Bookmarks
C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
79% (01:58) correct
21%
(02:13)
wrong
based on 691
sessions
History
Date
Time
Result
Not Attempted Yet
3 Years ago, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby is
A. 1 year.
B. 1.5 Years.
C. 2 Years.
D. 3 Years.
E. 4 Years.
A. 1 year.
B. 1.5 Years.
C. 2 Years.
D. 3 Years.
E. 4 Years.
12 Apr 2015, 19:54
Kudos
Bookmarks
Hi All,
This question is based on the Average Formula, but can actually be solved in a number of different ways (depending on how you choose to set up the 'math'). Here's a solution that focuses on doing the straight-forward 'math':
We're told that 3 YEARS AGO, the average age of a family of 5 members was 17 years.
This means that the SUM of their ages was (5)(17) = 85 years.
A baby was born (meaning that there are now 6 family members). We're told that the PRESENT average age of the family members is the SAME.
This means that the sum of the ages is (6)(17) = 102 years.
We're asked for the PRESENT age of the baby.
Since each of the original 5 family members has aged 3 years since the initial average was calculated, the sum of their PRESENT ages is...
85 + (5)(3) = 100.
Since the current sum of the 6 family members is 102, the baby is 102-100 = 2 years old.
Final Answer:
GMAT assassins aren't born, they're made,
Rich
This question is based on the Average Formula, but can actually be solved in a number of different ways (depending on how you choose to set up the 'math'). Here's a solution that focuses on doing the straight-forward 'math':
We're told that 3 YEARS AGO, the average age of a family of 5 members was 17 years.
This means that the SUM of their ages was (5)(17) = 85 years.
A baby was born (meaning that there are now 6 family members). We're told that the PRESENT average age of the family members is the SAME.
This means that the sum of the ages is (6)(17) = 102 years.
We're asked for the PRESENT age of the baby.
Since each of the original 5 family members has aged 3 years since the initial average was calculated, the sum of their PRESENT ages is...
85 + (5)(3) = 100.
Since the current sum of the 6 family members is 102, the baby is 102-100 = 2 years old.
Final Answer:
GMAT assassins aren't born, they're made,
Rich
General Discussion
12 Apr 2015, 14:13
Kudos
Bookmarks
The above problem is from a book called Quantitative Aptitude- by R. S. Agarwal.
Please help me with some Kudos.
Please help me with some Kudos.
shriramvelamuri
