In how many ways can the letter of ZOOLOGY be a... - JAMB Mathematics 2022 Question
In how many ways can the letter of ZOOLOGY be arranged?
A
720
B
360
C
840
D
120
correct option: c
ZOOLOGY has 7 letters in total, with O repeated thrice hence,
\(\frac{7!}{3!}\) → \(\frac{7*6*5*4*3*2*1}{3*2*1}\)
= 840ways
Please share this, thanks:
Add your answer
No responses