Question

A notebook weighs $3^{-2}$ pounds. If in a bag there are 36 similar notebooks, how much does the bag weigh?

• A.
• B.
• C.
• D.

Answer 1

The correct option is D

Weigh of one notebook = $3^{-2}$ pounds = $\frac{1}{9}$ pounds

So, weigh of 36 similar notebook = $36\times \frac{1}{9}$ pounds = 4 pounds