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17 Feb 2022, 03:15
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Difficulty:
35%
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Question Stats:
63% (01:24) correct
38%
(01:12)
wrong
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A carpenter needs four boards, each 2 feet 10 inches long. If wood is sold only by the foot, what is the minimum length, in feet, of wood the carpenter must buy?
(A) 9
(B) 10
(C) 11
(D) 12
(E) 13
(A) 9
(B) 10
(C) 11
(D) 12
(E) 13
26 Feb 2022, 09:13
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Bunuel
A carpenter needs four boards, each 2 feet 10 inches long. If wood is sold only by the foot, what is the minimum length, in feet, of wood the carpenter must buy?
(A) 9
(B) 10
(C) 11
(D) 12
(E) 13
(A) 9
(B) 10
(C) 11
(D) 12
(E) 13
\(1\) foot \(=12\) inches
Total Needed \(8\) feet \(40 \) inches or \(136 \) inches
\(136\) Inches \(= 11.4\) Feet
Since mimimum \(1\) foot must be bought carpenter needs to buy \(12 \) feet wood.
Ans D
Hope it's clear.
27 Feb 2022, 15:12
Kudos
Bookmarks
Bunuel
A carpenter needs four boards, each 2 feet 10 inches long. If wood is sold only by the foot, what is the minimum length, in feet, of wood the carpenter must buy?
(A) 9
(B) 10
(C) 11
(D) 12
(E) 13
(A) 9
(B) 10
(C) 11
(D) 12
(E) 13
Breaking Down the Info:
We only need to add the 10 inch part since we can already buy the 2 ft part in whole. Then \(4*10 \text{ in} = 40 \text{ in} = 40\text{ in} * \frac{1 \text{ ft}}{12 \text{ in}} = 3.33 \text{ ft}\).
Then we need 4 feet from the "fractional" part, and then we add 8 from the integer part to get 12 feet in total.
Answer: D
) to answer this question. The GMAT doesn't expect you to know conversions like this, because that would be unfair to people who grew up with metric units, so in a real GMAT question, the conversion would always be given to you in the question itself.
