Question

please anyone give answer of this question ​

Answer 1

ds/s=da/a+2db/b+3dc/c

=1+2(3)+3(2)=13%

if you get this mark me as brain list

Answer 2

S=ab^2/c^3

If a,b,c are 1%,3%,2%

then,

1%+2×3%+3×2%

we get,

1+6+6 =13

Answer of S=ab^2/c^3 is 13...