Lizzy: Mr. Manuel is a campsite manager who's been tasked with checking the number of tents set up in the recreation area. On a particular day, he counted 100 tents in the northernmost part of the campsite and twice that number on the east side of the grounds. The number of tents at the center of the camp was four times the number of tents in the northernmost part of the campsite. If he also counted 200 tents in the southern part of the campsite, what is the total number of tents in the recreation area?.
Me: Hmmm, let me think. I think this is the detailed solution:
On the eastern part of the campsite, Mr Manuel counted 2 * 100 = 200 tents. The total number of tents in the eastern and the northern part of the campgrounds is 200 + 100 = 300. There are four times as many tents as the northernmost part in the central part of the campsite, which means there are 4 * 100 = 400 tents in the central part of the camp. The total number of tents in the three parts of the campsite is 400 + 300 = 700. If you add the number of tents Mr. Manuel counted at the southern part of the campsite, you get 700 + 200 = 900 tents on the whole campsite. Final answer: 900.