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Bunuel
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A website requires a password made up of 2 one-digit numbers followed 27 Feb 2019, 23:12
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E
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Difficulty:

35% (medium)

Question Stats:

71% (01:34) correct 29% (02:06) wrong based on 114 sessions

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A website requires a password made up of 2 one-digit numbers followed by 3 of the 26 letters. How many different passwords are possible if repetition of numbers and letters is allowed?

A. 98
B. 17,576
C. 117,000
D. 1,404,000
E. 1,757,600
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E
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A website requires a password made up of 2 one-digit numbers followed 28 Feb 2019, 03:38
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Bunuel
A website requires a password made up of 2 one-digit numbers followed by 3 of the 26 letters. How many different passwords are possible if repetition of numbers and letters is allowed?

A. 98
B. 17,576
C. 117,000
D. 1,404,000
E. 1,757,600
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digits 10 and letters 26
10*10*26*26*26

IMO E 1,757,600
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A website requires a password made up of 2 one-digit numbers followed 28 Feb 2019, 13:17
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10*10*26*26*26

Ans must have 600 as last three digits. Ans E

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A website requires a password made up of 2 one-digit numbers followed 28 Feb 2019, 13:28
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A website requires a password made up of 2 one-digit numbers followed by 3 of the 26 letters. How many different passwords are possible if repetition of numbers and letters is allowed?

A. 98
B. 17,576
C. 117,000
D. 1,404,000
E. 1,757,600

Number of ways to choose first digit: 10 (digits from 0 to 9)
Number of ways to choose second digit: 10 (again digits from 0 to 9 since repetition is allowed)
Number of ways to choose the first letter: 26
Number of ways to choose the second letter: 26
Number of ways to choose the third letter: 26

Possible combinations: 10 * 10 * 26 * 26 * 26 = 1757600

Answer E
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A website requires a password made up of 2 one-digit numbers followed 04 Mar 2019, 20:10
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Bunuel
A website requires a password made up of 2 one-digit numbers followed by 3 of the 26 letters. How many different passwords are possible if repetition of numbers and letters is allowed?

A. 98
B. 17,576
C. 117,000
D. 1,404,000
E. 1,757,600
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The number of possible passwords is:

10 x 10 x 26 x 26 x 26 = 1,757,600

(Note: if you don’t want to perform all the math, you can see that 10 x 10 x 26 x 26 x 26 will produce two trailing zeros, and of the answer choices, only answer choice E has two trailing zeros.)

Answer: E
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A website requires a password made up of 2 one-digit numbers followed 05 Oct 2020, 18:05
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