Question

There are 914.4 millimeters in a yard. There are 3 feet in a yard. How many millimeters are in a foot?

Answer 1

There are 304.8 milimerers in a foot

Answer 2

It is given in the question that

There are 914.4 millimeters in a yard. There are 3 feet in a yard.

It means

$1yard=914.4 millimeters , 1 yard= 3 feet$

So we have

$914.4 millimeters = 3 feet$

Dividing both sides by 3

$\frac{914.4}{3} millimeters = 1 feet$

$1 foot = 304.8 millimeters$