Question 3 (i)
Express 5 cm in meter and kilometer

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Solution

$Express 5 cm in meter and kilometer 100 c m = 1 m e t e r ∴ 1 c m = \frac{1}{100} m e t e r \Rightarrow 5 c m = \frac{5}{100} = 0.05 m e t e r N o w, 1000 m e t e r s = 1 k i l o m e t e r s ∴ 1 m e t e r = \frac{1}{1000} k i l o m e t e r \Rightarrow 0.05 m e t e r = \frac{0.05}{1000} = 0.00005 k i l o m e t e r$

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$Which of the following is correct ?$
$(I) 1 m i l l i m e t e r = 0.001 m e t e r$
$(I I) 1000 m i l l i m e t e r = 1 m e t e r$
$(I I I) 1 k i l o m e t e r = 1000 m e t e r$

Q. 1 kilometer = meters

Q. How many meters are there in 100 kilometer?

State whether true or false:

Given: The ship's average speed over the

9

kilometers was greater than

55

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It took the ship less than

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hours to travel

9

kilometers. (1 kilometer = 1,000 meters)

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Introduction: Decimal

Standard VII Mathematics

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Question 3 (i) Express 5 cm in meter and kilometer

Express 5 cm in meter and kilometer100cm=1meter∴1cm=1100meter⇒5cm=5100=0.05meterNow,1000meters=1kilometers∴1meter=11000kilometer⇒0.05meter=0.051000=0.00005kilometer

Question 3 (i)
Express 5 cm in meter and kilometer