Correct Answer: A
Explanation:
Let x represent the original number of friends who shared the van.
Set up the equation like so:
0.25(6 + x) = 0.4x
0.25(6 + x) = 0.4x
1.5 + 0.25x = 0.4x
1.5 = 0.4x - 0.25x
1.5 = 0.15x
x = 10
Therefore, originally it was 10 friends that split the cost of the van and had to pay $0.40 each.
To find the cost of the van:
10 x $0.40 = $4
Therefore the value of the van is $4 (y = 4).