Question

It cost rupees 200 per kg what is its rate in 100 grams

Answer 1

If it cost 200 per Kg then it cost 0.2 per gram

So, 0.2x100= Rs.20

Answer 2

1kg = 1000 gram

If 1000 gram = 200

Then,

1 gram =200/1000

1 gram of sugar can be purchased in Rs 1/5

Now,

100 gram of sugar can be purchased in (1*100)/5

100 gram of sugar can be purchased in 100/5 =Rs 20

I hope this will help you

-by ABHAY