Norma's family spends 120 mins at Mount Rushmore
The question is based on the concept of linear equations where 1/3 of an hour spent watching a movie equals 1/6 of the total time spent at Mount Rushmore by Norma and her family.
The time they watched the movie = 1/3 of an hour
Time spent at Mount Rushmore = 1/6 of the whole time
The equations will be as follows:
1/3 of an hour = 1/6 of the whole time
20 mins = 1/6 of the whole time
120 mins = The time they spent at Mount Rushmore
So, Norma's family spends 120 mins at Mount Rushmore
Learn more about linear equations:
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