The average weight of a group of 5 boys is 54 kg If the boys whose weights 52 kg and 58 kg are replaced by 2 new boys whose weight difference is 15 kg due to which the new average of the group is reduced by 1 then find the weight of the new boys?
1
45 kg, 60 kg
2
40 kg, 55 kg
3
50 kg, 65 kg
4
55 kg, 70 kg