Question

If $m=3$ and $n=7$, evaluate :

i) $12mn$

Answer 1

Step: Evaluate

Given: $12mn$
Substituting $m=3$ and $n=7$ in the given expression
$12mn=12\times 3\times 7$
$=252$

Hence, the value of $12mn$ for $m=3$ and $n=7$ is $252$.