Answer:Common Joe
Explanation:
Given
Total weight of Raw material is 1500 tons
Big Red can transport 200 tons at a cost of $50 per truckload
so Big Red need to do 8 rounds to completely transport the raw material
In first 7 round round it carries 200 tons and in last round it carry 100 tons
i.e.
![200* 7+100](https://img.qammunity.org/2020/formulas/mathematics/middle-school/n7vwykovj74lj0l52cx2v8bv6xz6sz1l6r.png)
so cost for Red bus=
![50* 8=$400](https://img.qammunity.org/2020/formulas/mathematics/middle-school/royahhfttspf0j1150xkx9svw5djorwbiz.png)
For Common Joe truck requires 17 round of loading to completely transport 1500 tons
In first 16 round it carries 90 tons and in last round it carries 60 tons
So cost for Common Joe is
![17* 20=$340](https://img.qammunity.org/2020/formulas/mathematics/middle-school/38evil3si8v3o9u8dodqyzhnk2lhtw7rls.png)
So Factory should choose Common Joe while considering Economy.