Answer:
Gross profit ratio= 20; inventory turnover ratio= 4.00.
Step-by-step explanation:
Given option in the question are incorrect for gross profit ratio as option given are for Inventory turnover ratio.
Given: Net sales= $420000.
Cost of goods sold= $336000
Gross profit= $84000
Now, claculating the gross profit ratio.
Formula; Gross profit ratio=
![(Gross\ profit)/(Net\ sales) * 100](https://img.qammunity.org/2021/formulas/business/high-school/hbf9pgvh3qknmim56zaxzst4tokvo5amq8.png)
⇒ Gross profit ratio=
![(84000)/(420000)* 100](https://img.qammunity.org/2021/formulas/business/high-school/largc98q46428mqr8s036sxfh2rrivk3go.png)
∴ Gross profit ratio= 20
Now, finding the Inventory turn over ratio.
Formula;
![Inventory\ turnover\ ratio= (cost\ of\ good\ sold)/(average\ inventory)](https://img.qammunity.org/2021/formulas/business/high-school/n0ke2p6scw4a8qe2t2v0hgvf3mwv3y4ky6.png)
Average inventory=
![(Beginning\ inventory + ending\ inventory)/(2)](https://img.qammunity.org/2021/formulas/business/high-school/g4ws1kb93khxpjcp15blkfef4aibnt2gpy.png)
⇒ Average inventory=
![(82000+86000)/(2)](https://img.qammunity.org/2021/formulas/business/high-school/qxir0v5ukpyrf0cixhtq2kzu6z855nn321.png)
∴ Average inventory=
![(168000)/(2) = 84000](https://img.qammunity.org/2021/formulas/business/high-school/tyubhliuy2g2a2cpbah4l7c8rwadb4vspx.png)
Next,
![Inventory\ turnover\ ratio= (336000)/(84000)](https://img.qammunity.org/2021/formulas/business/high-school/zmk0hkffmg2v6q99ko83lk0eefh7ww9rzl.png)
⇒
![Inventory\ turnover\ ratio= 4.00](https://img.qammunity.org/2021/formulas/business/high-school/zard4r16eomw84inb7d4mi6plzdy2tfll9.png)
Hence, Gross profit is 20 and inventory turnover ratio is 4.00