three ratios of time spent per day by the teachers on internet was 1:2:3. The ratios of the days they used the internet was 2:4:5..Find the ration of their total usage of the internet
To see why that works, look at specific times and days. If the first teacher spent one hour on the internet then the second teacher spent 2 hours and the third teacher spent 3 hours. If the first teacher spent 2 day on the internet then the second teacher spent 4 days and the third teacher spent 5 hours. The first teacher spent 1 hour per day for 2 days so 2 hours on the internet. The second teacher spent 2 hours per day for 4 hours so 8 hours on the internet. The third teacher spent 3 hours a day on the internet for 5 days so 15 days on the internet.
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