Jay McKray, Jem Palmer and Louise Cliffe had to place bets on their fellow housemates' tasks to win food for the week.
On the first four tasks, they had to place a £50 stake and on the final bet they could bet as much as they like and could either double their stakes or lose everything.
Jay, Jem and Louis correctly guessed that Alex Rose would eat 21 to 40 chocolate balls and then doubled their winnings in a final bet that Aaron Allard-Morgan would choose to sing a High School Musical song on a karaoke machine.
They had lost money earlier in the task, after they incorrectly guessed the number of times that Tom O'Connell would say the word "bab" in 30 minutes. They also wrongly guessed that Faye Palmer would lose out in a quiz against a 10-year-old.
The trio also failed to guess how long it would take the housemates to pull off a fox's tail from Harry Blake, after he was dressed up as the animal for a fox hunt around the house.
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