Question

Given 5 flags of different colours, how many different signals can be generated if
each signal requires the use of 2 flags, one below the other? Find the answer by using permutations
​

Answer 1

Step-by-step explanation:

5⟶ Flags

Each signal needs two glags

Therefore number of possible signals

⇒

5

P

2

⇒

3!

5!

⇒5×4

⇒20

Hence the correct answer is 20 signals

Answer 2

Answer:

sry don't know.

Don't delete this answer