Question

An experiment measures quantities a,b,c and X is calculated from the formulaX=ab×b/ c×c×c.
The percentage errors in a,b,c are -+1%,+-3% and +-2% respectively. What is the percentage errors in X?

Answer 1

1(%age error in a) + 2 (%age error in b) +3 (%age error in c)

1*1 + 2*3 + 3*2

1+6+6

13%