Correct Answer: Option D

Explanation

The first poster has 7 ways to be arranges, the second poster can be arranged in 6 ways and the third poster in 5 ways.

= 7 x 6 x 5

= 210 ways

or \(\frac{7}{P_3}\) = \(\frac{7!}{(7 - 3)!}\) = \(\frac{7!}{4!}\)

= \(\frac{7 \times 6 \times 5 \times 4!}{4!}\)

= 210 ways

There is an explanation video available below.

• jamb mock question? Answer this

  1 Answers   ·   Biology   ·   3 hours ago
• Please l activated my school app on my phone, and I activated it on my PC it's saying not activated? Answer this

  1 Answers   ·   1 hour ago
• Is it possible that JAMB can ask a question and the answers ain't in the option? And if possible, should... Answer this

  2 Answers   ·   15 hours ago