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f 412*378 = A, then which of the following is equal to 412*3

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by BTGmoderatorDC » Fri Aug 24, 2018 1:00 pm

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Answers

A

B

C

D

E

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Difficulty—

f 412*378 = A, then which of the following is equal to 412*379?

A. A + 1
B. A + 378
C. A + 379
D. A + 412
E. A + 413

OA D

Source: Veritas Prep
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by Brent@GMATPrepNow » Fri Aug 24, 2018 2:41 pm
BTGmoderatorDC wrote:If (412)(378) = A, then which of the following is equal to (412)(379)?

A. A + 1
B. A + 378
C. A + 379
D. A + 412
E. A + 413
Given: (412)(378) = A

We must find the value of (412)(379).

(412)(379) = (412)(378 + 1)
= (412)(378) + (1)(412)
= A + 412

Answer: D

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Brent
Brent Hanneson - Creator of GMATPrepNow.com
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by Scott@TargetTestPrep » Sat Apr 13, 2019 6:09 pm
BTGmoderatorDC wrote:f 412*378 = A, then which of the following is equal to 412*379?

A. A + 1
B. A + 378
C. A + 379
D. A + 412
E. A + 413

OA D

Source: Veritas Prep
412*379 = 412(378 + 1) = 412*378 + 412

Since 412*378 = A, then 412*378 + 412 = A + 412.

Answer: D

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