<h2>
Answer:</h2>
<u>The truck can catches the bus after </u><u>4.5 </u><u>hours</u>
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<h2>
Step-by-step explanation:</h2>
As we know that speed of the bus is 60 mph
and The speed of the truck = 60 × =60 × = 100 mph
The bus moves before the truck by 3 hours
The bus moves a distance = 60 × 3 = 180 miles when the truck starts moving
So Distance of truck - Distance of bus = 180
Distance of truck = 100 × t = 100t
Distance of bus = 60 × t = 60t
so they meet each other at the same time
Now
100t - 60t = 180
40t = 180
t = 180/40 = 4.5
Now they meet each other after 4.5 hours
The truck can catches the bus after 4.5 hours