The reasons are as follows: 130÷8= 16.25 (yuan) is the cost of each large truck.

90÷5= 18 (yuan) is the cost of each pickup truck.

∵ 18 & gt； 16.25∴ saving money with big trucks

197 ÷ 8 = 24 cars ... 5 tons

So we use 24 trolleys, 1 car.