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Bunuel
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A piece of wood 5 feet long is cut into three smaller pieces. How long 16 Oct 2017, 10:24
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63% (01:25) correct 37% (01:12) wrong based on 236 sessions

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A piece of wood 5 feet long is cut into three smaller pieces. How long is the longest of the three pieces?

(1) One piece is 2 feet 7 inches long.
(2) One piece is 7 inches longer than another piece and the remaining piece is 5 inches long.
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D
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vaibhavanant
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A piece of wood 5 feet long is cut into three smaller pieces. How long 16 Oct 2017, 11:24
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A piece of wood 5 feet long is cut into three smaller pieces. How long is the longest of the three pieces?

(1) One piece is 2 feet 7 inches long.
---> Implies the rest of the pieces will have a total length of 2 feet 5 inches. Even if we divide it as 2 feet 4 inches of one log and 1 inch of another the longest has to be 2 feet 7 inches log. Hence sufficient.

(2) One piece is 7 inches longer than another piece and the remaining piece is 5 inches long.
----> Total length = 5 feet= 60 inches
The remaining piece = 5 inches so we are left with 55 inches.
Assuming one log to be X inches the other log has to be X+7 inches
So X +X+7= 55
Solving equation will give us value of X and hence sufficient.
IMO Answer: D

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A piece of wood 5 feet long is cut into three smaller pieces. How long 16 Oct 2017, 22:43
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If one piece is greater than 2.5 feet, it would be biggest. Since the wood is 5 feet.

1. Sufficient.
2. \(x + (x-7) + 5 = 60\)
Sufficient

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A piece of wood 5 feet long is cut into three smaller pieces. How long 23 Oct 2017, 08:28
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Here's a silly mistake a classic example of a mistake I'd make. I got B. Even though now, I know it's D. I totally get the answer, but I get into this tunnel vision during a test and I miss easy points like a question like this. If anyone has any tips on avoiding the tunnel vision and missing questions like this, please share. I really need the help because I get much harder questions, but miss struggle with ones like this.

That would be really helpful, thanks.
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A piece of wood 5 feet long is cut into three smaller pieces. How long 25 Oct 2017, 12:32
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Plunkster82
Here's a silly mistake a classic example of a mistake I'd make. I got B. Even though now, I know it's D. I totally get the answer, but I get into this tunnel vision during a test and I miss easy points like a question like this. If anyone has any tips on avoiding the tunnel vision and missing questions like this, please share. I really need the help because I get much harder questions, but miss struggle with ones like this.

That would be really helpful, thanks.
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Only tip I can give you is practise a lot with under time pressure. Maybe give yourself 75 seconds for easy questions and try doing 15 questions in 19mins.
Also, start noting why you missed a particular question:
- Did calculation mistake
- Misread a number
- Calculated A, when question asked for B
- Missed a use-case

Then watch out for these while doing more practise
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A piece of wood 5 feet long is cut into three smaller pieces. How long 14 Sep 2024, 04:24
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