Question

In making 1000 revolutions, a wheel covers 88 km. The diameter of the wheel is?

Answer 1

Answer:

Step-by-step explanation:

1000 revolutions=88km=88000m

1 revolution=88000/1000=88m

therefore circumference(perimeter)of wheel is 88m.

circumference formula is 2×22/7×r

88=44r/7

88×7=44r

528=44r

r=528/44

r=12

there fore radius is 12m

as diameter is 2 times radius

d=12×2=24m

Answer 2

AnsweR :-

Circumference of wheel * number of revolution= distance travelled

So

2πr*1000=88000m

2πr=88m

r=88/2π

=14m

So diameter will be 2*radius=2*14=28m