Hard
Bird Riddle
A large truck is crossing a bridge 1 mile long. The bridge can only hold 14000 lbs, which is the exact weight of the truck. The truck makes it halfway across the bridge and stops. A bird lands on the truck. Does the bridge collapse?
Choose an answer
A.Yes, it collapses
B.Only if the bird is heavy
C.It depends on the bridge material
D.No, it does not collapse. Because it has driven a half-mile - you would subtract the gas used from the total weight of the truck.
Answer: No, it does not collapse. Because it has driven a half-mile - you would subtract the gas used from the total weight of the truck.
Fuel burned during the drive reduces the truck's total weight, leaving enough margin under the limit for the added weight of the bird.