Probability of all 3-digit numbers having all the digits same is

Find the number of all 6-digit natural numbers having exactly three odd digits and three even digits.

A three-digit number is selected at random from the set of all three-digit numbers. The probability that the number selected has all the three digits same is 1//9 b. 1//10 c. 1//50 d. 1//100

A three-digit number is selected at random from the set of all three-digit numbers. The probability that the number selected has all the three digits same is 1//9 b. 1//10 c. 1//50 d. 1//100

A three-digit number is selected at random from the set of all three-digit numbers.The probability that the number selected has all the three digits same is 1/9 b.1/10 c.1/50 d.1/100

A three-digit number is selected at random from the set of all three-digit numbers. The probability that the number selected has all the three digits same is 1//9 b. 1//10 c. 1//50 d. 1//100

Total number of 6-digit numbers in which all the odd digits appear, is

Total number of 6-digit numbers in which all the odd digits appear, is

Write all 3-digit numbers using the digits 1, 3, 5 taking each digit only once.

Total number of 6-digit numbers in which all the odd digit appear is