Question

The set W represents the elements present in water.

W = {hydrogen, oxygen}

The set C represents the elements present in carbon dioxide gas.

C = {carbon, oxygen}

How many elements are in the set W ∩ C?

A 1
B 2
C 3
D 4

Answer 1

\[W\cap C\] is what is in both

Answer 2

A 1

only oxygen is common

Answer 3

A 1
Yes, only oxygen is intersection part!