Question: Subject identification numbers in a certain scientific research project consist of two letters followed by two digits and then two more letters. Assume repetitions

Subject identification numbers in a certain scientific research project consist of two letters followed by two digits and then two more letters. Assume repetitions are not allowed within any of the three groups, but letters in the first group of two may occur also in the last group of two. How many distinct identification numbers are possible? There are distinct identification numbers possible.
Step by Step Solution
★★★★★
3.48 Rating (155 Votes )
There are 3 Steps involved in it
1 Expert Approved Answer
Step: 1 Unlock
Question Has Been Solved by an Expert!
Get step-by-step solutions from verified subject matter experts
Step: 2 Unlock
Step: 3 Unlock
