How many palindrome are there?

Q: How many different 5-digit even numbers can be formed from 0, 1, 3, 4, 5, 7, and 9 if repetitions…

A: The digits used to form the 5-digit even numbers is 0, 1, 3, 4, 5, 7, and 9.

Q: How many 4-digit numbers can be formed from 1, 2, 3, 4, and 5 if no repetition is allowed?

A: Given : Numbers = 1,2,3,4 and 5

Q: How many numbers between 1999 and 4000 can be formed with the digits 0,1,2,3 and 4 if repetition of…

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Q: A combination lock consists of a dial with 40 numbers on it. To open the lock, you turn the dial to…

A: Given,Combination lock consists of a dial with 40 numbers.We have to turn the dial to the right…

Q: Supposed repetitions are not allowed. Find the number n of three-digit even numbers that can be…

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Q: How many natural numbers that are less or equal to 1000 and that are not multiples of 3, 5, or 7…

A: A number is said to be divisible by other number if on dividing the number  with it given remainder…

Q: How many five-digit numbers can be formed from the digits 1, 2, 4,6,8,9& 0 if digit is repeated?

A: To make a 5 digit number 0 can not come at first. So for the first position there are 6 choices. And…

Q: If 94 is recorded using stem-and-leaf display. The number 9 is the?

A: Given that,  the number 94 is recorded using stem-and-leaf display That is,

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: Use any method, list all the three digit numbers from the set {3,4,5,6} where there are no repeating…

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Q: How many arrangements can be made with the letters of "common"

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Q: Suppose we want to form four-digit numbers using the set of digits {0,1, 6, 7, 9}. For example, 9071…

A: The first number can be selected in 4 ways. [ Any number from {1,6,7,9} ] The second number can be…

Q: How many 4-diğit humbérš čâh bě fórméd from the digits 1, 3, 5, 6, 8, and 9 if no repetition is allo…

A: Given digits 1, 3, 5, 6, 8 and 9 (Total 6 numbers) We want to find number of 4 digit numbers such…

Q: ay be formed using the digits 2, 3, 4, 6 and 9 if repetitions

A: 22,23,24,26,29,32,33,34,36,39,42,43,44,46,49,62,63,64,66,69,92,93,94,96,99. In unit digit place we…

Q: How many 7 digit numbers can be formed using the numbers 0-9 if the first and 5th digit can only be…

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Q: suppose repetitions are not allowed. Find the number n of three-digit even nimbers that can be…

A: Given problem Given that   Suppose repetitions are not allowed. Given six digits : 2,3,5,6,7,9…

Q: Which of your birthdays, until your one hundredth, fall on the same day of the week as the day you…

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Q: If repetitions are not permitted, how many 3-digit even numbers can be performed from the six digits…

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Q: how many five letter codes can be made if each chosen letter (from the the original 7 letters) can…

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Q: Find the probability that a man asked to form a two digit number out of 3, 5, 7 and 9 would form 79…

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Q: A four-digit number is to be formed from the digits 0, 1, 2, 3, 5, 7, 8, and 9. How many four-digit…

A: Given,digits is 0,1,2,3,5,7,8,9

Q: A four digit marathon race number is generated using only the digits 0, 1, 2, 3, 4, 5.  If…

A: We need four-digit race number and each place can be filled by 0, 1, 2, 3, 4, & 5

Q: Suppose there is a list of fourteen jokes about marriage and divorce. In how many ways can people…

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Q: A classic counting problem is to determine the number of different ways that the letters of…

A: The number of different ways to arrange a word:Consider the total number of letters in a word be…

Q: ind the number of permutations of the letters in the word TENNESSEE

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Q: In how many distinct ways can a 18-digit number be made using nine 9's and nine 9's?

A: We have to find the distinct ways a 18-digit number be made using nine 9's and nine 9's.

Q: How many three-digit number with no repeat can we make using digits from {1,2,3,4,5}

A: three-digit number with no repeat can we make using digits from {1,2,3,4,5} here we have 5 choices…

Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.