Answer:
12 trips will be needed to carry 14 cords of the wood.
Explanation:
We will use unitary method to solve this problem.
∵ Pick up truck carry
cord of firewood in trip = 1
∴ Pick up truck will carry 1 cord of firewood in the trips =
tips
=
trips
∴ Truck will carry 14 cords of firewood in the trips =

= 12 trips.
Therefore, 12 trips will be needed to carry 14 cords of the wood.