Rukmini purchased two packets of sweets weighing 27⁄8 kg and 31⁄8 kg respectively. How much is the total weight of the sweets?
A 57⁄8 kg
B 71⁄8 kg
C 67⁄8 kg
D 61⁄8 kg
The answer should be 6 kg. It is given in the solution also.