[Video] Q25: Question 25 from the math (calc) section of 2018 march sat

Explanation for Question 25 From the Math (Calc) Section on the 2018 March Sat

Question 25 says a mag magazine article on video game habits in the 2 United States reported that in 2012 gamer spent an average of 5.6 3 hours per week playing games. The article also reported the average for 2013 4 to be 6.3 hours per week, based on the article, 5 how did the average number of hours that gamers spent playing games for a 6 week change from 2012 to 2013? 7 So we know in 2012, they played an average of 5.6 hours per week. 8 And in 2013 they played 6.3 hours per week. 9 For that information alone, we can eliminate answer choice a because we at least 10 know that the number of hours gamers spent playing games per week increased 11 it. Wasn't a decrease next. 12 We can divide 6.35 5.6, 13 and that gives us 1.125, 14 which tells us that 5.6 times 1.125 is 15 equal to 6.3. Meaning that 5.6 increased by 12.5% 16 is 6.3. So that tells us that the answer is answer choice D.

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