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5A ornithologist tracks a bird that flies 120 km on the first day, 150 km on the second day, and 90 km on the third day. What is the average distance flown per day?
Total distance = 120 + 150 + 90 = <<120+150+90=360>>360 km
Total fuel = 1,200 + 800 + 300 = <<1200+800+300=2300>>2,300 kg
A science communicator films 4 videos, each lasting 12 minutes, 15 minutes, 9 minutes, and 18 minutes. She edits each video to reduce total time by 10%. What is the final total video length?
Total original length = 12 + 15 + 9 + 18 = <<12+15+9+18=54>>54 minutes
Day 3: +225 km (half of 450 = 225 east)
An aerospace engineer designs a rocket with three stage efficiencies: Stage 1 uses 40% of total fuel, Stage 2 uses 35%, and Stage 3 uses 25%. If Stage 1 uses 8,000 liters, how many liters does Stage 3 use?
Total after Week 3 = 12,000 + 14,400 + 17,280 = <<12000+14400+17280=43680>>43,680
