Which is equal to N? Help pleaseeee

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gmatpup: Senior | Next Rank: 100 Posts; Posts: 88; Joined: Sat Oct 15, 2011 6:38 pm; Thanked: 1 times; Followed by:1 members

Which is equal to N? Help pleaseeee

by gmatpup » Fri Dec 23, 2011 6:30 pm

When N is divided by T, the quotient is S and the remainder is V. Which of the following is equal to N?

A. ST
B. S + V
C. ST + V
D. T(S+V)
E. T(S-V)

Answer is C

Please explain

I plugged in numbers but got the wrong answer. Thanks so much!!

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Source: Beat The GMAT — Problem Solving | Fri Dec 23, 2011 6:30 pm

GMAT/MBA Expert

Anurag@Gurome: GMAT Instructor; Posts: 3835; Joined: Fri Apr 02, 2010 10:00 pm; Location: Milpitas, CA; Thanked: 1854 times; Followed by:523 members; GMAT Score:770

by Anurag@Gurome » Fri Dec 23, 2011 6:56 pm

gmatpup wrote:When N is divided by T, the quotient is S and the remainder is V. Which of the following is equal to N?

A. ST
B. S + V
C. ST + V
D. T(S+V)
E. T(S-V)

Answer is C

Please explain I plugged in numbers but got the wrong answer. Thanks so much!!

If positive integer, x, is divided by positive integer, y, gives a reminder r and q is the quotient, then x = qy + r, where remainder is a non-negative integer and is always less than divisor.

Example: 7/2 gives a remainder = 1 and quotient = 3. Then 7 = 3 * 2 + 1

So, N = ST + V

The correct answer is C.

Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
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