Question

How many grams should be added to 2 kg 300 g to make it 5 kg 68 g?

Answer 1

Let x be added to 2 kg 300 g or 2300 g to make it 5 kg 68 g or 5068 g.

Then, 2 kg 300 g + x = 5kg 68 g  .....[1 kg = 1000 g]

⇒ 2300 g + x = 5068 g

⇒ x = 5068 g – 2300 g 

x = 2768 g

Hence, 2 kg 768 g should be added to 2 kg 300 g to make it 5 kg 63 g.