Answer: He bought 46.875 pounds of rice for the week.
Step-by-step explanation:
Total rice he bought = (Number of dishes made in a week) x (portion of rice in each dish)
GIven: Each portion has 5 ounces of rice.
i.e. each portion has [tex]\dfrac{5}{16}[/tex] pounds of rice. [ 1 pound = 16 ounces]
Total rice he bought ( in pounds)=[tex]150\times\dfrac{5}{16}[/tex]
[tex]=46.875\text{ pounds}[/tex]
Hence, he bought 46.875 pounds of rice for the week.