Question

how many grams should be added to 2 kg 200g to make it 5kg 68g

Answer 1

2868gm should be added to 2kg 200g to make it 5kg 68g.

Answer 2

let no.of grams be x
= x + 2 kg 200 g = 5 kg 68 g
= x + 2200 g = 5068 g
= x = 5068 g - 2200 g 
= x = 2868 g

Therefore, your answer is 2868 grams