Verified Answer :

What u do to get this answer is

78/(3 3/4)=20.8 your dividing and that's the answer you get so the obvious answer would be D.20

taskmasters

From the information given, the full length of the strip is 78

We need 3 3/4 strips from this strip

We first write 3 3/4 in its decimal fraction form  so:

3/3/4 is equivalent to 3 and (3/4) → 3 and (0.75) → 3.75

Now we simply divide the strip by this number so:

78/3.75 = 20.8

So you will get 20 strips each exactly 3 3/4  inches in length.

Of these, you will remain with 0.8  which is 8/10 → 2 / 5 of an inch.

The best answer therefore is D

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