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In how many ways can the letter of ZOOLOGY be arranged?

In how many ways can the letter of ZOOLOGY be arranged?
Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE
  • A 720
  • B 360
  • C 840
  • D 120
Correct Answer: Option C
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

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