Question

Marissa plans to use 50 sheets of paper for a scrapbook. how much thicker will the scrapbook be if she uses heavyweight instead or lightweight paper?

100 sheets of lightweight in thickness is 3/10 in
100 sheets of heavyweight in thickness is 2/5 in.
Ms. Sue
2/5 = 4/10

[(4/10) - (3/10)] / 2 = ____ inch


is the answer 1/20 if not I am sooo confused.

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