ExamPlay Dark Logo
Entrar

Mathematics for IGCSE & O level - Sets (Section 3 - No. 24)

In a survey, 60 people like coffee, 50 like tea, and 30 like both. How many people like coffee or tea?
80
110
140
70

Explicação

Use the inclusion-exclusion principle: 60 + 50 - 30 = 80.

Comentários (0)

Faça login para comentar
Anúncio
BrainBehindX Inc Logo
©2026; Distribuído por BrainBehindX Inc