Question

want the process step by step

Answer 1

R=V/I
Thus %error in R= 1*%error in V+1*%error in I
1 is written because V is raised to the power 1.As errors are always added thus even if the power on I is -1,we will multiply the %error with 1
Thus,%R=3%+2%
=5%
hope this helps you.....