The correct option is
D 80,000 dm
Distance of bank from home = 2 km 500 m
Distance of office from bank = 5 km 500 m
So, total distance Sam travels
= 2 km 500 m + 5 km 500 m
Converting km into dm, we get:
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1518181/original_Slide_31-03.png)
So, 1 km = 10,000 dm
⇒ 2 km = 2 × 10,000 = 20,000 dm
And 5 km = 5 × 10,000 = 50,000 dm
Now, converting m into dm, we get:
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1518173/original_Slide_31-04.png)
So, 1 m = 10 dm
⇒ 500 m = 500 × 10 = 5,000 dm
∴ The total distance traveled by Sam is:
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1518176/original_Slide_31-02.png)
So, Sam travels 80,000 dm.