WAEC 2025

If R = {2, 4, 6, 7} and S = {1, 2, 4, 8} then R ∪ S equals

A{1, 2, 4, 6, 7, 8}
B{1, 2, 4, 7, 8}
C{1, 4, 7, 8}
D{2, 6, 7}

Explanation

The union of two sets, R ∪ S, contains all unique elements present in either set R or set S. Combining R = {2, 4, 6, 7} and S = {1, 2, 4, 8} without repeating common elements gives {1, 2, 4, 6, 7, 8}.

Sit a WAEC paper

Real past questions, marked instantly, no account needed.

Start a free paper

Have Sade explain it

Talk it through with a tutor that adapts to you. Free to start.

Talk to Sade

Explanation

Sit a WAEC paper

Have Sade explain it

Related questions