What is 1550 dm expressed in hectometers?
a.
155 hm
b.
155.0 hm
c.
15.50 hm
d.
1.55 hm

Option D.

Explanation:

We need to convert dm to hectometers.

Here, dm is decimeter.

We know that

1 decimeter = 0.001 hectometers

1 dm = 0.001 hm

Using this conversion we get

(1550 × 1) dm = (1550 × 0.001) hm

1550 dm = 1.55 hm

It means 1550 dm can expressed as 1.55 hectometers.

Therefore, the correct option is D.

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