Question

Total number of 4 digit odd numbers that can be formed using 0,1,2,3,5,7

Answer 1

Heya!!!


Here is your answer:

See the pic!

It is a question of combination and permutation

U didn't write that repetition is allowed or prohibited

So, I have solved in both Ways!!

hope you got ypur answer :)

Answer 2

Answer:

Total number of choices to form 4 digit odd number from the given numbers = 720

Step-by-step explanation:

We know that the odd number always ends with the odd digit number

⇒ Choices for the last digit to form a 4 digit odd number = 4

Choices for the first digit can be any number except 0

⇒ Number of choices for first digit = 5

Also, 2nd digit be any number so no. of choices = 6

Similarly, for 3rd digit, number of choices = 6

Hence, Total number of choices to form 4 digit odd number from the given numbers = 5 × 6 × 6 × 4 = 720