Mathematics
The number of rounds that a wheel of diameter m will make in going 4 km is :
1600
1800
1900
2000
Mensuration
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Answer
Given,
Diameter of wheel (d) = m
Distance = 4 km = 4000 m.
Distance covered in 1 round = Circumference
= 2πr
= πd
=
= 2 m.
Number of rounds =
=
= 2000.
Hence, option 4 is the correct option.
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