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mlane25269
- Master | Next Rank: 500 Posts
- Posts: 151
- Joined: Fri Jun 13, 2008 7:31 am
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3 should be the answer
i solved this by drawing a simple diagram...
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GMAtprep question
Source: Beat The GMAT — Problem Solving |
How did get 3 for the answer? I drew a diagram also but my diagram shows more than 5 oranges being in the top row and that's not even one of the answer choices!!
@mlane: Hmmm... Let me pick your brain a bit. How many oranges did you have in your 2nd (middle) layer?mlane25269 wrote:How did get 3 for the answer? I drew a diagram also but my diagram shows more than 5 oranges being in the top row and that's not even one of the answer choices!!
Sandra
OK - I had 8 oranges too and I still got the correct answer, which is 3 oranges on the 3rd layer (very top).mlane25269 wrote:I came up with 8 oranges in the second row for my drawing
Assuming your 2nd layer looks like this rough sketch:
OOOO
OOOO
Then only 3 oranges can be stacked on top while satisfying the condition in the Question-Stem.
++
How did you manage to stack another 8 oranges on the top 3rd layer layer without breaking the condition?mlane25269 wrote:How did get 3 for the answer? I drew a diagram also but my diagram shows more than 5 oranges being in the top row and that's not even one of the answer choices!!
ok I think I know what I did wrong now. I drew the second layer outside of my original drawing and came up with 3 oranges staced on top of the second row. Makes sense now. Thanks!
Hi,
the bottommost 3 rows will have 5*3=15 oranges
Second stack will have 4*2 =8 oranges and,
the topmost stack will have just 3*1=3 oranges.
Hope this makes a sense.
the bottommost 3 rows will have 5*3=15 oranges
Second stack will have 4*2 =8 oranges and,
the topmost stack will have just 3*1=3 oranges.
Hope this makes a sense.
