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x, y, z, 1, 2, 3 How many six letter-number arrangements, such as xyz1
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28 Apr 2022, 02:00
28 Apr 2022, 02:00
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Question Stats:
93% (00:44) correct
6% (00:33) wrong based on 16 sessions
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x, y, z, 1, 2, 3
How many six letter-number arrangements, such as xyz123, can be formed from the list above? The first three of the arrangement must be letters and the last three have to be numbered. No letter or number can be used more than once.
(A) 18
(B) 36
(C) 72
(D) 360
(E) 720
How many six letter-number arrangements, such as xyz123, can be formed from the list above? The first three of the arrangement must be letters and the last three have to be numbered. No letter or number can be used more than once.
(A) 18
(B) 36
(C) 72
(D) 360
(E) 720
Part of the project: Skill Builder Project for a Q170
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
Re: x, y, z, 1, 2, 3 How many six letter-number arrangements, such as xyz1
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28 Apr 2022, 11:38
28 Apr 2022, 11:38
2
xyz123 -----> 1st 3 letter needs to be alphabet and no alphabet can be used more than once --> 3 * 2*1 = 6
Last 3 digits needs to be no. and no no. can be used more than once --> 3 * 2*1 = 6
So in total, we have 6*6 = 36 cases, satisfying the condition.
Hence option B is correct
Last 3 digits needs to be no. and no no. can be used more than once --> 3 * 2*1 = 6
So in total, we have 6*6 = 36 cases, satisfying the condition.
Hence option B is correct
gmatclubot
Re: x, y, z, 1, 2, 3 How many six letter-number arrangements, such as xyz1 [#permalink]
28 Apr 2022, 11:38
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