Answers

  • Brainly User
2014-10-05T09:53:31+05:30
Circumference of the bicycle wheel = (22/7)x60 cm = 13.2 / 7 m

Distance travelled = 2 kms = 2000 m

Number of rotations made by wheel
= Total distance / Distance traveled in one rotation 
= Total Distance / Circumference of the wheel
= 2000 / (13.2/7) = (2000x 7) / 13.2 
= Approx 1060 
0
Figure 1.32 in the first line is 1.32,please.
figure 1.32 in the first line is 13.2,please.
  • Brainly User
2014-10-05T09:57:23+05:30
Radius of wheel = 60/2=30cm=0.3m
Circumference=2 \pi r
                      =2*3.14*0.3
                      =1.884
Distance between school and house = 2km=2000m
ATQ
n(2 \pi r)=2000m
n(1.884)=2000
n=2000/1.884
->n≈1060
Hence the cycle's wheel makes 1060 rotation.
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