Mark the correct alternative in the following: A five-digit number is written down at random. The probability that the number is divisible by 5 and no two consecutive digits are identical, is

Question

Philoid · Accepted Answer

Given:

A 5-digit number is divisible by 5 if it ends with 0 0r 5.

So at ones place we have two digits out of 10 (one at a time)

Remaining places we have 9 digits out of 10

For first place ; we have only 8 digits out of 9 because 0 cannot be at first place

So probability

Mark the correct alternative in the following:A five-digit number is written down at random. The probability that the number is divisible by 5 and no two consecutive digits are identical, is

Mark the correct alternative in the following:
A five-digit number is written down at random. The probability that the number is divisible by 5 and no two consecutive digits are identical, is