How many different three-digit numbers can be formed using the digits 1, 4, 5, and 9 without repetition? For example, 114 is not allowed. The number of different three-digit numbers is .

Q: How many 4-digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6, if repetition of digits…

A: In this question, concept of combination is applied. Combination A combination is a mathematical…

Q: A license plate consists of 2 letters followed by 4 numbers, and to avoid confusion, the numbers 1…

A: GivenNo.of letters from A-Z =26No.of numbers from 1-0 excluding 1 and 0 = 8

Q: Standard automobile license plates in a country display 3 numbers, followed by 3 letters, followed…

A: The standard automobile license plates in a country display 3 numbers, followed by3 letters,…

Q: How many different three digit numbers can be formed using the digits 9,6,7,8,5 and 4 with…

A: Given digits, 9, 6,7,8,5 and 4 Total numbers of given digits = 6

Q: How many different two-digit numbers can you form using the digits 3, 8, 7, 4, 1, and 5 without…

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Q: In choosing what music to play at a charity fund raising event Cory needs to have an equal number of…

A: If an event can be done in n different ways and an other event can be done in m different ways, then…

Q: Arealtor uses a lock box to store the keys to a house that is for sale. The access code for the lock…

A: The access code contains 4 digits          Digits : 0,1,2,3,4,5,6,7,8,9 The first digit can…

Q: A state makes license plates with two letters followed by four numbers. if no repetitions of the…

A: The license plates must consist of two letters followed by four numbers.

Q: How many different seven-digit telephone numbers can be formed if the first digit cannot be zero?

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Q: In a certain state, license plates each consist of 2 letters followed by 3 digits. How many…

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Q: How many different arrangements can be made using all the letters in CALGARY, if the first letter…

A: CALGARY If the first letter must be G.  Then, Starting with G, need to arrange the remaining 6…

Q: To use an automated teller machine at a certain bank, you must enter a 4-digit code, using the…

A: Total available numbers = 9 To make 4 digit code

Q: How many different three digit numbers can be formed using the digits 8,1,5, and 7 with repetition ?…

A: To determine: The different three digit numbers can be formed using the digits 8, 1, 5, and 7 with…

Q: How many different standard plates are possible in this system?

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Q: For a segment of a radio show, a disc jockey can play 8 records. If there are 13 records to select…

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Q: For a segment of a radio show, a disc jockey can play 9 records. If there are 14 records to select…

A: For a segment of radio show, a disc jockey can play 9 records.If there are 14 records to select…