A four letter code has to be formed using the alphabets from the set {a, b, c,…
TCS · 2024
A four letter code has to be formed using the alphabets from the set {a, b, c, d} such that the codes formed have odd number of a's and other alphabets cannot be repeated. How many different codes can be formed satisfying the mentioned criteria?
- A.
24
- B.
120
- C.
36
- D.
60
Attempted by 42 students.
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