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The Diameter of a Cycle Wheel is 4 5/11 Cm. How Many Revolution Will It Make in Moving 6.3 Km ? - Mathematics

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प्रश्न

The diameter of a cycle wheel is `4 5/11` cm. How many revolution will it make in moving 6.3 km ?

योग
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उत्तर

Diameter = `4 5/11` cm = `49/11` cm

circumference = 2 π r = π d

`= 22/7 xx 49/11`

= 14 cm

Circumference= 14 cm = 0.14m 

Distance travelled = 6.3 km = 6300 m 

No. of revolutions = `6300/0.14 = 45000`

Wheel takes 45000 revolutions in moving 6.3 km 

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अध्याय 19: Mensuration I - Exercise 19.1

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फ्रैंक Mathematics - Part 2 [English] Class 10 ICSE
अध्याय 19 Mensuration I
Exercise 19.1 | Q 4
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