Question

The mass of three bodies calculated by two different balances are
given as 2.2 kg, 10.01 kg and 10.02 g. What is the total mass of the
bodies in appropriate precision.
(a) 2.22003 kg
(b) 2.2 kg
(c) 2.22 kg
(d) 2.220 kg
please also write solution ​

Answer 1

The answer is option (d). Considering the question, the number of significant figures are 4. So the answer must also contain 4 significant figures