Question

12/35
Which statement is false?
There are 100 cm in a
decameter.
There are 10 mm in a
centimeter.
There are 1000 meters
in a kilometer
There are 100 cm in a
meter.

Answer 1

Answer:

False statement:

There are 100 cm in a  decameter.

Explanation:

Kilometer is the largest unit of length.

1 km = 1000 m

So, there are 1000 m in a kilometer.

The next larger unit is decameter.

1 dm = 10 m

So, there are 10 meters in a decameter.

The next larger unit is meter.

1 m = 100 cm

So, there are 100 cm in a meter,

We have, 1 dm = 10 m and 1 m = 100 cm

So, 1 dm = 10 $\times$ 100 cm = 1000 cm

So, there are 1000 cm in a decameter.

The next larger unit is centimeter.

1 cm = 10 mm

So, there are 10 mm in a centimeter.

Therefore, among all the options, the first option seems wrong because 1 decameter equals 1000 cm and not 100 cm.