Question

Sam always writes more than 400 words but less than 750 words for an essay. If $x$ is the number of words written on any particular day, then .

• A. $400\le x\le 750$
• B. $400\le x<750$
• C. $400<x<750$

Answer 1

The correct option is C $400<x<750$

Sam always writes more than $400$ words.
$\Rightarrow x>400$
Also, he always writes less than $750$ words.
$\Rightarrow x<750$
$\Rightarrow x>400$ and $x<750$
$\Rightarrow 400<x<750$