How many 4-letter words (with or without meaning) can be formed from the letters of the word **ROSE**, without repetition?
A$256$
B$24$
C$16$
D$4$
Answer & Solution
Correct answer: B. $24$
$4 \times 3 \times 2 \times 1 = 24$ arrangements of 4 distinct letters.
Related questions
Penalty for wrong answers : THERE WILL BE PENALTY FOR WRONG ANSWERS MARKED BY A CANDIDATE Penalty for wrong answers : THERE WILL BE PENALTY FOR WRONG ANSWERS MARKED BY A CANDIDATE For [[1,2],[2,4]], the determinant equals:If A is invertible, |A^{−1}| equals:For a 3 × 3 non-singular A with |A| = 5, the value of |adj A| is:For a non-singular square matrix A of order n, |adj A| equals:For non-singular A, B of the same order, (AB)^{−1} equals:For a non-singular A, (A^{−1})^{−1} equals: