Respuesta :
First figure out how many people are 1/4 of 84 by dividing 84 by 4 =21. Then multiply 21 by 3 to figure out how many people are 3/4 of 84 =63. 63 people guessed incorrectly and 21 people guessed correctly:)
The answer is....:
63 contestants [guessed incorrectly]
(3/4 = 75%; 75% of 84→84 • 0.75 = 63
63 contestants [guessed incorrectly]
(3/4 = 75%; 75% of 84→84 • 0.75 = 63