0
How many 7 digit telephone numbers can be formed if the first three digits cannot be 800 and the first digit cannot be 0?
There are nine possibilities for the first digit. If this digit is not 8, there are ten possibilities for each of the remaining digits. Thus, if the first digit is not 8, there are 8 X 106 possibilities. If the first digit is 8, there are only nine choices for the second and third digits, since zero is excluded. This gives 9 X 9 X 104 possibilities that begin with 8. The total number of possibilities is therefore the sum of these two possibilities, which is 9.81 X 106 = 9,810,000.
What else can I help you with?
The total number of five digit numbers that can be be formed digits 12345 is?
It is 120 if the digits cannot be repeated.
How many 7 digit telephone numbers can be formed the first digit cannot be zero?
9,000,000 if there are no other requirements.
How many 5 digits numbers can be formed using digits?
99999
How many 4 digit numbers can be formed from the digits 12345 if any of the digits cannot be repeated?
jfnvjsdkncjfdknvlakdjvbsadoihfcb shfvbcnsHLfc bnshJCbvjhbeshuyvbe b hdfbgehfgbwahucgbvfer fguy gyfuby uyr
How many digits numbers each less than 500 can be formed from the digits 13467 if repetitions is allowed?
There are 5 numbers of 1 digit, 25 numbers of 2 digits, and 75 numbers of 3 digits. This makes 105 numbers in all.
How many 3 digit numbers can be formed from the digits 12345 if the digits cannot be repeated?
1 set
The total number of five digit numbers that can be be formed digits 12345 is?
It is 120 if the digits cannot be repeated.
How many 7 digit telephone numbers can be formed the first digit cannot be zero?
9,000,000 if there are no other requirements.
How many 4 digit numbers can be formed from digits 123456789?
5040 different 4 digit numbers can be formed with the digits 123456789. This is assuming that no digits are repeated with each combination.
How many 5 digits numbers can be formed using digits?
99999
How many 4 digit numbers can be formed from the digits 12345 if any of the digits cannot be repeated?
jfnvjsdkncjfdknvlakdjvbsadoihfcb shfvbcnsHLfc bnshJCbvjhbeshuyvbe b hdfbgehfgbwahucgbvfer fguy gyfuby uyr
How many digits numbers each less than 500 can be formed from the digits 13467 if repetitions is allowed?
There are 5 numbers of 1 digit, 25 numbers of 2 digits, and 75 numbers of 3 digits. This makes 105 numbers in all.
How many 9 digit numbers which are divisible by 4 can be formed by using the digits 1 to 5 if repetition of digits is not allowed?
None. Nine digit number cannot be formed using only five digits 1,2,3,4,5 in the case none of the digits can repeat. -------- Egad! I misread the question, apologies to the questioner. And thanks to Miroslav.
How many 5 digit numbers can be formed from the digits 012 if any of the digits can be repeated?
500
How many 4 digit numbers can be formed from the digits 7341 if none of the digits can be repeated?
24
How many five digits numbers can be formed using 01234 without repetition assuming that number cannot begin with 0?
There are 4*4*3*2*1 = 96 such numbers.
How many numbers of at least tree different digits can be formed from the integers 123456?
Numbers formed should be of at least 3 digits means they may be of 3 digits, 4 digits, 5 digits or 6 digits. There are 6 choices for digit in the units place. There are 5 and 4 choices for digits in ten and hundred’s place respectively. So, total number of ways by which 3 digits numbers can be formed = 6.5.4 = 120 Similarly, the total no.of ways by which 4 digits numbers can be formed = 6.5.4.3 = 360. the total no. of ways by which 5 digits numbers can be formed = 6.5.4.3.2 = 720. The total no.of ways by which 4 digits numbers can be formed = 6.5.4.3.2.1 = 720. So, total no.of ways by which the numbers of at least 3 digits can be formed = 120 + 360 + 720 + 720 = 1920.
