Question

A piece of wire is wound tightly around a pencil.The turns are not overlapping but next to one another.The length of the pencil covered by the wire is 6.3cm when 900 turns of the wire were made.Find the average diameter of the wire.
A 0.07mm
B 0.14mm
C 0.35mm
D 0.70mm

Answer 1

@dan815

Answer 2

@aaronq

Answer 3

@Data_LG2

Answer 4

@ParthKohli

Answer 5

@Somy

Answer 6

My answer is A

Answer 7

is my answer correct? @IrishBoy123

Answer 8

i'd say so

Answer 9

@IrishBoy123 shoud it be \[=900\div63mm\]?

Answer 10

otherway round