Evaluate each expression if $p = 1, q = 4 a n d r = 3 .$
$(3 p q r - 11 p r)$

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Solution

As here in this question value of $p, q$ and $r$ is given i.e. $p = 1, q = 4 a n d r = 3$
So, the value of $(3 p q r - 11 p r)$
$= (3 \times 1 \times 4 \times 3 - 11 \times 1 \times 4) = (12 \times 3 - 11 \times 4) = (36 - 44) = - 8 .$
Therefore, the value of $(3 p q r - 11 p r) = - 8 .$ .

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