Question

solve it
....aaand please use image

Answer 1

No. Of revolution = 5000

Distance covered = 11 km = 1100000 cm

Circumference of wheel = Distance / Number of revolution

=> Circumference = 1100000 / 5000 cm

=> 2 × Pi × R = 1100 / 5

=> 44R/ 7 = 220

=> R = 220× 7 / 44

=> R = 5 × 7

Radius of wheel = 35 cm

Diameter of wheel = 35 × 2 = 70 cm

Answer 2

No. of revolutions = 5000

5000 revolutions =11000 m
1 revolution=11000/5000 m
circumference=11/5 m
2πr=11/5
πd=11/5
22/7×d=11/5
d=11×7/(5×22)
d=11×7/110
d=7/10 m
d=0.7 m
d=0.7×100 cm
d=70 cm