Question

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

Answer 1

Let x grams be added to 2 kg 300 g or 2300 g to make it 5 kg 68 g or 5068 g. [1 kg = 1000 g]

Then, 2 kg 300 g + x g = 5 kg 68 g

$\Rightarrow 2300+x=5068$

$\Rightarrow x=5068-2300$

x = 2768 g = 2kg 768g

Hence, 2 kg 768 g should be added to 2 kg 300 g to make it 5 kg 68 g.