Solution:
(i) $p$: 125 is divisible by 5 and 7
Let’s say, $q$: 125 is divisible by 5.
$r$: 125 is divisible 7.
So here, $q$ is true and $r$ is false.
Hence, $q\wedge r$ is False
As a result, $p$ is not valid.
(ii) Provided $q$ : 131 is a multiple of 3 or 11
Let’s say, $P$: 131 is a multiple of 3.
$Q$: 131 is a multiple of 11.
So here, $P$ is false and $Q$ is False
Hence, $P\vee Q$ is False
As a result, $q$ is not valid