Question

Two persons enter a room in which five seats
are vacant. In how many ways can they occupy
the seats?​

Answer 1

Answer:

they can puppy seats on 20 ways

Step-by-step explanation:

5×4=20

Answer 2

Answer:10 ways

Step-by-step explanation:concider the seats a, b, c, d, e

So the 10 ways are :- ab, bc, cd, de, ac, bd, ce, ad, be, ae.

There can also be 20 ways. If in these 10 ways they interchange their seats.