Answer :
Answer:
Now first we have to found the decrease length.
which is:4mm-3mm=1mm
Now
we have to use formula to calculate the percentage which is
= decrease length/total length ×100%
=. 1/4×100%
=. 25 %
Therefore,the decrease rate is 25%.
Answer:
Now first we have to found the decrease length.
which is:4mm-3mm=1mm
Now
we have to use formula to calculate the percentage which is
= decrease length/total length ×100%
=. 1/4×100%
=. 25 %
Therefore,the decrease rate is 25%.