Question

The diameter of a wheel is 49 cm . How many revolutions will it make to cover 77 m? (Take π =22/7)

Answer 1

Answer:

circumstance of wheel=2pieR

here D=49cm thus R=49/2cm

circumference =2×22/7×49/2

154cm

now distance to be covered =77m=7700cm

therefore number of revelations =distance to be covered ÷ circumference of the wheel =7700÷154 =50