If each of 3 digit code form integers from 1 to 20, inclusively, and each of the digits are different, how many possible codes are there?
A. 6,040
B. 6,840
C. 6,240
D. 6,340
E. 8,440
* A solution will be posted in two days.
If each of 3 digit code form integers from 1 to 20, inclusiv
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- Max@Math Revolution
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If each of 3 digit code is formed of integers from 1 to 20, inclusively, and each of the digits are different, how many possible codes are there?
A. 6,040
B. 6,840
C. 6,240
D. 6,340
E. 8,440
* A solution will be posted in two days.
A. 6,040
B. 6,840
C. 6,240
D. 6,340
E. 8,440
* A solution will be posted in two days.
Math Revolution
The World's Most "Complete" GMAT Math Course!
Score an excellent Q49-51 just like 70% of our students.
[Free] Full on-demand course (7 days) - 100 hours of video lessons, 490 lesson topics, and 2,000 questions.
[Course] Starting $79 for on-demand and $60 for tutoring per hour and $390 only for Live Online.
Email to : [email protected]
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Are you sure you mean "digit"?Max@Math Revolution wrote:If each of 3 digit code form integers from 1 to 20, inclusively, and each of the digits are different, how many possible codes are there?
A. 6,040
B. 6,840
C. 6,240
D. 6,340
E. 8,440
* A solution will be posted in two days.
Cheers,
Brent