Answer:
[tex]57\:\mathrm{km}[/tex]
Step-by-step explanation:
Since the question implies his truck travels at a constant distance per gallon, we can set up the following proportion to find how much father his truck can go.
Let [tex]x[/tex] represent how much farther his truck can go, in kilometers:
[tex]\frac{2}{76}=\frac{1.5}{x}[/tex]
Cross-multiplying, we get:
[tex]2x=76\cdot 1.5,\\x=\frac{76\cdot 1.5}{2}=\boxed{57\:\mathrm{km}}[/tex]
