WAEC 2023 · Paper 1 · Q4

Consider the statements:

$x$ : The school bus arrived late

$y$ : The students walked down to school

Which of the following can be represented by $y \Rightarrow x$ ?

Worked solution (try it first)

The statement " $y$ implies $x$ " links the students walking to school with the bus arriving late, one depending on the other.
Option A is about not going to school, and option B has the bus arriving early, so neither uses both $x$ and $y$ .
Option D joins the two with "either … or", which is $x \vee y$ , not an implication.
Only option C ties the walking to the late bus, so the answer is option C.