Answer:
3 : 1
Step-by-step explanation:
ratio = teeth on front sprocket : teeth on rear sprocket
= 36 : 12 ( divide both parts of the ratio by 12 )
= 3 : 1 ← in simplest form
<h2>The distance between two points is

or 9.9 units</h2>
<em><u>Solution:</u></em>
<em><u>The distance between two points is given as:</u></em>

From given,

<em><u>Substituting the values we get,</u></em>

Thus the distance between two points is
or 9.9 units
A prime number which is 2 digits is 11.
C 87 the median :::::::::::::