Jill's bank account has j dollars. Marcy's bank account has 5 times what Jill's bank account has and 1/3 of what Sarah's bank account has. How much more is in Sarah's bank account than is in Jill's bank account, in terms of j?
Assign letters to the bank account of each woman: Jill = j. Marcy = m. Sarah = s.
Now create equations based on the information given: m = 5j (Marcy has 5 times what Jill has). m = (1/3)s (Marcy has 1/3 of what Sarah has). Combine the two equations and simplify: 5j = m = (1/3)s. 5j = (1/3)s. 15j = s. Sarah has 15j dollars in her account so subtract j (Jill's bank account) from 15j and you get 14j.
Correct Answer - Choice B
Essential GMAT Reading Comprehension Guide
After reading F1GMAT’s Essential GMAT Reading Comprehension Guide, you will:
1. Complete GMAT RC Questions in less than 1 minute and 50 seconds
2. Read Faster
3. Take Notes Effectively
4. Collect and Interpret Facts
5. Speed up Summary Creation
6. Remember Information
7. Question the Author
8. Learn to Answer GMAT Reading Comprehension Title question
9. Learn to Answer GMAT Reading Comprehension Main Idea Question
Mastering GMAT Critical Reasoning
After you read F1GMAT’s Mastering GMAT Critical Reasoning Guide, you will learn:
How to overcome flawed thinking in GMAT Critical Reasoning?