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Q.

20 cm equals to


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a

200 m

b

20 m

c

200 mm

d

20 km 

answer is C.

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Detailed Solution

20 cm equals to 200 mm.
A metre scale is graduated (or marked) in 100 centimetres, and each centimetre is further divided into ten millimetre parts.
1 m=100cm
1 cm=10mm
According to the submultiples of the standard unit of measureme
 therefore 20 cm = 20×10 mm.
        = 200 mm
 
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