Question

The length of a pencil is 14 cm and its diameter is 7mm what is the ratio of the diameter of the pencil to that of its length ​

Answer 1

Answer:

length of the pencil is14

and d=7

ratio = d /length of the pencil

=7/14

=1/2

Answer 2

The ratio of the diameter of the pencil to the the length of a pencil = 1 : 20

Explanation:

Given,

The length of a pencil = 14 cm = 140 mm and

[ ∵ 1 cm = 10 mm]

The diameter of a pencil = 7 mm

To find, the ratio of the diameter of the pencil to the the length of a pencil  ​= ?

∴ The ratio of the diameter of the pencil to the the length of a pencil

​= 7 mm : 140 mm

= 7 : 140

Divided by 7, we get

= $\dfrac{7}{7}$ : $\dfrac{140}{7}$

= 1 : 20

∴ The ratio of the diameter of the pencil to the the length of a pencil = 1 : 20