Each edge of a cubical block of wood measures 2 inches. What is the surface area of the block in square inches?

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Vincen: Legendary Member; Posts: 2898; Joined: Thu Sep 07, 2017 2:49 pm; Thanked: 6 times; Followed by:5 members

Each edge of a cubical block of wood measures 2 inches. What is the surface area of the block in square inches?

by Vincen » Tue Sep 08, 2020 7:18 am

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Each edge of a cubical block of wood measures 2 inches. What is the surface area of the block in square inches?

(A) 4
(B) 8
(C) 12
(D) 16
(E) 24

Answer: E

Source: GMAT Paper Tests

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Source: Beat The GMAT — Problem Solving | Tue Sep 08, 2020 7:18 am

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Scott@TargetTestPrep: GMAT Instructor; Posts: 8086; Joined: Sat Apr 25, 2015 10:56 am; Location: Los Angeles, CA; Thanked: 43 times; Followed by:29 members

Re: Each edge of a cubical block of wood measures 2 inches. What is the surface area of the block in square inches?

by Scott@TargetTestPrep » Fri Sep 11, 2020 1:17 pm

Vincen wrote: ↑
Tue Sep 08, 2020 7:18 am
Each edge of a cubical block of wood measures 2 inches. What is the surface area of the block in square inches?

(A) 4
(B) 8
(C) 12
(D) 16
(E) 24

Answer: E

Solution:

Since the surface area of a cube with side length s is 6s^2, the surface area of a cubical block with side length 2 inches is 6 x 2^2 = 24 square inches.

Answer: E

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