Answer:
y = 10
Explanation:
given that y varies directly as x then the equation relating them is
y = kx ← k is the constant of variation
to find k use the condition y = 125 when x = 25 , then
125 = 25k ( divide both sides by 25 )
5 = k
y = 5x ← equation of variation
when x = 2 , then
y = 5 × 2 = 10