Question

If Raju travels 3 km everyday, then how many centimetres does he travel everyday?

• A. 3000 cm
• B. 300000 cm
• C. 30000 cm
• D. 300 cm

Answer 1

The correct option is B

300000 cm

When we convert a larger unit (km) to a smaller unit (m), we multiply the given measure by the conversion factor.

Since 1 km = 1000 m, we multiply 3 by 3000 to convert 3 kms into metres.

i.e., 3km = 3 x 1000 m = 3000 m

To convert metres into centimetres, we multiply the given measure by 100.

i.e., 3000 m = 3000 x 100 cm = 300000 cm

Thus, Raju travels a total of 300000 cm everyday.