JAMB - Mathematics (2022 - No. 13)

In how many ways can the letter of ZOOLOGY be arranged?
720
360
840
120

Explanation

Zoology has 7 letters in total, with O repeated thrice

\(\frac{7!}{3!}\) → \(\frac{7*6*5*4*3*2*1}{3*2*1}\)

= 840ways

Comments (0)

Advertisement