How many 4 digit numbers can be formed from the digits 2 3 5 6 and 8 which are divisible by 2 if none of the digits is repeated?
How many 4 digit numbers can be formed from the digits 2 3 5 6 and 8 which are divisible by 2 if none of the digits is repeated?
Here ur answer is 72.
How many 4 digit numbers can be formed using 4 different digits?
Thus for the 2 digit number you have constructed so far there are 4 4 = 16 choices. Now write down the third digit. Again there ae 4 choices so the number of possible 3 digit numbers is 4 4 4. Finally there are 4 choices for the last digit so the number of possible 4 digit numbers is 4 4 4 = 256.
How many 4 digit numbers can be formed from the digits 0 3 5 and 6 which are divisible by 5 and none of the digits is repeated?
answer it 120 four digit numbers can be formed.
Can the digits of a 4 digit number be repeated?
However, the digits cannot be repeated In the 4 -digit numbers and thousands place is already occupied with a digit. The hundreds, tens, and units place is to be filled by the remaining 9 digits.
How many 4 digit even numbers can be written in 5x9x8x7?
Thus such four digit even number can be written in 5 x 9 x 8 x 7 = 2520 ways, however we are presuming that 0 (Zero) is also considered a valid value on thousands place. [ Please note that 2520 is not the desired answer as it will include such numbers in which 0 will be at thousands place and those cannot be called 4 digit
How many ways can you write a four digit even number?
Hence the digit and unit place can be written in 5 ways. Now the remaining digits can be written in 9,8 and 7 ways respectively (as numbers are not to be repeated). Thus such four digit even number can be written in 5 x 9 x 8 x 7 = 2520 ways, however we are presuming that 0 (Zero) is also considered a valid value on thousands place.
How many ways can three-digit numbers be formed from five digits?
Thus, by the multiplication principle, the number of ways in which three-digit numbers can be formed from the given digits is 5×5×5=125. (ii). In this case, repetition digits is not allowed. Here, if units place is filled in first, then in can be filled by any of the given five digits.