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Byju's Answer
Standard VII
Mathematics
Area of Circle
72 km h-1 = ...
Question
72
k
m
h
−
1
=
_________
m
s
−
1
Open in App
Solution
5
18
m
/
s
=
1
k
m
/
h
r
72
k
m
/
h
r
=
72
×
5
18
=
20
m
/
s
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