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If n - 1 = 2/3, then n + 1 =

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Math Expert
Joined: 02 Sep 2009
Posts: 59573
If n - 1 = 2/3, then n + 1 =  [#permalink]

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22 Nov 2019, 03:29
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Question Stats:

94% (00:28) correct 6% (01:30) wrong based on 16 sessions

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If $$n-1=\frac{2}{3}$$, then $$n+1=$$

A. $$\frac{4}{3}$$

B. $$\frac{5}{3}$$

C. $$\frac{7}{3}$$

D. $$\frac{8}{3}$$

E. $$\frac{11}{3}$$
GMAT Club Legend
Joined: 12 Sep 2015
Posts: 4121
Re: If n - 1 = 2/3, then n + 1 =  [#permalink]

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22 Nov 2019, 07:37
Top Contributor
Bunuel wrote:
If $$n-1=\frac{2}{3}$$, then $$n+1=$$

A. $$\frac{4}{3}$$

B. $$\frac{5}{3}$$

C. $$\frac{7}{3}$$

D. $$\frac{8}{3}$$

E. $$\frac{11}{3}$$

No need to solve the equation for $$n$$.

Take: $$n-1=\frac{2}{3}$$

Add 2 to both sides to get: $$n-1+2=\frac{2}{3}+2$$

Simplify to get: $$n+1=\frac{2}{3}+\frac{6}{3}$$

Simplify: $$n+1=\frac{8}{3}$$

Cheers,
Brent
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Re: If n - 1 = 2/3, then n + 1 =   [#permalink] 22 Nov 2019, 07:37
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