A sequence of an alpha-numeric is to be formed. The sequence consisting of two alphabets followed by two numbers is to be formed with no repetitions. In how many ways can it be formed?
a. 65000
b. 64320
c. 58500
d. 67600
Answers
Answered by
4
Answer:
58500
Step-by-step explanation:
A sequence of an alpha-numeric is to be formed. The sequence consisting of two alphabets followed by two numbers is to be formed with no repetitions.
Total Number Of Alphabates = 26 (A -Z)
1st Alphabet can be selected from 26 available Alhabates
2nd Alphabet can be Selected from 25 Available alphabtaes ( as one Alphabet is already used and repetition is not allowed)
numbers digits are 10 ( 0 to 9)
1st digit can be selected from 10 available numbers
2nd digit can be selected from 9 available numbers ( as one number is already used and repetition is not allowed)
So total Possible Combination =
26*25*10*9
= 58500
58500 (Option C is Right Answer)
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