There are twice as many centipedes as humans on a certain island and half as many sheep as humans. How many sheep and humans in total are on the island if the number of centipedes is 100?
The number of humans on the island is 100 / 2 = <<100/2=50>>50.
There are 1/2 * 50 = <<1/2*50=25>>25 sheep on the island.
The total number of sheep and humans is 25 + 50 = <<25+50=75>>75.
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