Answer:
15 inches
Explanation:
We have that,
Length of the photo = 4 inches and Width of the photo = 6 inches
Also, the width of the image on the calendar = 10 inches
Let, the length on the image of the calendar = x inches.
Since, the ratio of the photo and its image will remain same, we get,
![(4)/(6)=(10)/(x)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/rvlgos63256ood448vffxan88havkbry7y.png)
i.e.
![x=(60)/(4)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/bxyl1pg21yoyb40cvj765zw8ovzw9fcaw9.png)
i.e. x = 15
Hence, the length of the image of the photo on the calendar is 15 inches.