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# A man earns N dollars a month and spends S dollars a month on rent. If

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A man earns N dollars a month and spends S dollars a month on rent. If  [#permalink]

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24 Dec 2018, 12:29
1
1
00:00

Difficulty:

15% (low)

Question Stats:

85% (01:25) correct 15% (01:33) wrong based on 51 sessions

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A man earns N dollars a month and spends S dollars a month on rent. If he then spends $$\frac{3}{8}$$of the remainder on food, how much, in dollars, is left over for other expenses, in terms of N and S?

A. $$\frac{3}{8}$$ (N - S)

B. $$\frac{3}{8}$$ (N + S)

C. $$\frac{5}{8}$$ (N - S)

D. $$\frac{5}{8}$$ (N + S)

E. $$\frac{8}{3}$$ (N - S)

Source: Kaplan GMAT Math Workbook - Sixth Edition
Page# 306

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Re: A man earns N dollars a month and spends S dollars a month on rent. If  [#permalink]

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24 Dec 2018, 12:36
1
A man earns N dollars a month and spends S dollars a month on rent. If he then spends $$\frac{3}{8}$$of the remainder on food, how much, in dollars, is left over for other expenses, in terms of N and S?

A. $$\frac{3}{8}$$ (N - S)

B. $$\frac{3}{8}$$ (N + S)

C. $$\frac{5}{8}$$ (N - S)

D. $$\frac{5}{8}$$ (N + S)

E. $$\frac{8}{3}$$ (N - S)

Source: Kaplan GMAT Math Workbook - Sixth Edition
Page# 306

In=N
Rent=S
Remain=N-S
Food=3/8 of remaining=3/8 of (N-S)
Now Remain=N-S-(3/8)N-S =N-S(1-3/8)....$$\frac{5}{8}$$ (N - S)

Ans:C
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Re: A man earns N dollars a month and spends S dollars a month on rent. If   [#permalink] 24 Dec 2018, 12:36
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