The correct option is A 4825
Total number of trucks used = 5
Rubble carried by 5 dump trucks = 485 tons
Rubble carried by 1 dump truck = Rubble carried by 5 dump trucks ÷ Total number of trucks used
=485÷5
Take a reciprocal of the second fraction and multiply that reciprocal by the first fraction as follows.
=485×15
=48×15×5
=4825tons
Hence, each truck carries 4825tons of rubble.