Question

.. A physical quantity A is related to four other
physical quantities a, b, c and d as
follows, A=a . The percentage errors of
ava
measurement in a, b, c and d are 1%, 3%, 2%
and 2% respectively. What is the percentage error
in the quantity A?
(1) 12%
(2) 7%
(3) 5%
(4) 14%​

Answer 1

the percentage error in the quantity A is (2) 7%