68ᵗʰ B.P.S.C. (Pre) 2023
How many words, no matter if they are meaningless, can be formed by the letters of the word ‘DIARY’?
a24
b25
c10
dMore than one of the above
eNone of the above✓ Correct
Explanation
No. of letters in word ‘DIARY’ = 5 According to questions No. of words that can be formed by the letters of the word ‘DIARY’ = 5! = 5 × 4 × 3 × 2 × 1 = 120
general-science