Answer:
36 red, 22 blue
37 red, 21 blue
38 red, 20 blue
39 red, 19 blue
40 red, 18 blue
Explanation:
Total number of pens: 58
More red pens than blue pens.
At least 36 red pens.
No more than 40 red pens.
Possible number of pens:
36 red, 22 blue
37 red, 21 blue
38 red, 20 blue
39 red, 19 blue
40 red, 18 blue