Question

In a survey of 50 students, 42 said that they disliked eating spinach, 37 said that they disliked eating cabbage, 31 students said that they disliked both spinach and cabbage. how many students liked eating both spinach and cabbage?

Answer 1

(Each survey has 50 students )
42+37+31=110
42/50 + 37/50 + 31/50
110 out of 150
150-110 = 40 like eating both spinach and cabbage