Question

the diameter of the wheel of car is 70cm. how many revolutions will it take to travel 99km? ​

Answer 1

Answer:

Step-by-step explanation:

1.65 km = 1.65 ×1000×100 cm

             = 165000 cm 

now,radius = diameter/2

          = 70/2

          =35 cm

now, circumference = 2π r

                                = 2×(22/7)×35

                                = 220 cm

it means, 220 cm = 1 revolution

      then, 165000 cm = 165000/220

                                  = 750 revolution