Question

Arrange the following measurements in ascending order. (Least on top)

• A. 3.50 mm
• B. 6 m 90 cm
• C. 5.20 m
• D. 10 km 50 m

Answer 1

To compare these different measurements, we first need to convert all of them into the same unit.

For this, note that
1 cm = 10 mm
1 m = 100 cm and
1 km = 1000 m

Thus, 6 m 90 cm = 690 cm = 6900 mm
Also, 5.20 m = 520 cm = 5200 mm
And, 10 km 50 m = 10050 m = 1005000 cm = 10050000 mm

Thus, 3.50 mm $<$ 5.20 m $<$ 6 m 90 cm $<$ 10 km 50 m