The length of a field is three times its width. if the perimeter is 64 m, what is the width of the field?
a. 8m
b. 16m
c. 21m
d. 32m

The answer is (a) 8m
This is because, if the length is 3 times as long as the width, you would multiply the numbers by 3 to give you a length.
8×3=24   16×3=48
We can stop at this point as we know the perimeter is 64 and to work out the perimeter you add up all the sides. 48+48+16+16 is larger than 64 so the only smaller number is 8. We can check this is correct by adding up the numbers.
8+8+24+24=64
We now know that the width of the field is 8m.

Magic man is here, but unfortunately he is broke won’t you him out

Then just do it (lol)