<human>:  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?
<bot>: How many humans are on the island? ** The number of humans on the island is 100 / 2 = <<100/2=50>>50.
How many sheep are on the island? ** There are 1/2 * 50 = <<1/2*50=25>>25 sheep on the island.
How many sheep and humans are on the island? ** The total number of sheep and humans is 25 + 50 = <<25+50=75>>75.
#### 75