A seven digit number is formed using digits 3,3,4,4,4,5,5. The probability, that number so formed is divisble by 2, is:

A five digit number (having all different digits) is formed using the digits 1,2,3,4,5,6,7,8 and 9. The probability that the formed number either begins or ends with an odd digit,is equal to

A five digit number is formed with the digits 1,2,3,4,5 without repetition.Find the probability that the number is divisible by 4 .

A five digit number if formed by the digits 1,2,3,4,5,6 and 8. The probability that the number has even digit at both ends is

A four-digit number is formed by the digits 1,2,3,4 with no repetition. The probability that the number is odd, is

A number of 3 different digits is formed from the digits 0, 1, 2, 3, 4, 5, 6 Probability that the number formed is '340' is

A four digit number is formed using the digits 1, 2, 3, 5 with no repetitions. Write the probability that the number is divisible by 5.