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A group of five friends have $87 dollars between them. Each one only has bills, that is, whole dollar amounts, no coins.
Data Sufficiency
Re: A group of five friends have $87 dollars between them. Each one only has bills, that is, whole dollar amounts, no co
Statement #1: three people share the same median value. Suppose Dolores were one of those three friends. Then, each would have $29, and together the three of them would have 3*29 = $87. A fourth would have $27, and we are already way over the amount of the whole group. It’s not possible for Dolores ...
- by coursetakers
Fri May 06, 2022 3:00 am- Forum: Data Sufficiency
- Topic: A group of five friends have $87 dollars between them. Each one only has bills, that is, whole dollar amounts, no coins.
- Replies: 1
- Views: 455
Re: How many hours did it take Helen to drive from her house to
d=rtd=rt , where dd is the distance covered, rr rate and tt time. Question: t=?t=? (1) r=72r=72. Clearly not sufficient. (2) (r+8)(t−1)=d(r+8)(t−1)=d. Clearly not sufficient. (1)+(2) r=72r=72 and (r+8)(t−1)=d(r+8)(t−1)=d --> 80(t−1)=d80(t−1)=d --> d=80(t−1)=rt=72td=80(t−1)=rt=72t --> 8t=808t=80 --> ...
- by coursetakers
Fri May 06, 2022 2:58 am- Forum: Data Sufficiency
- Topic: How many hours did it take Helen to drive from her house to
- Replies: 2
- Views: 759