Now the actual weight is 39 10g, which is more than 10g.

The reasons are: 47=50-3, 55=50+5.

Let 47 grams be on the X axis and 55 grams on the Y axis.

Now the problem is 5y-3x = 10.

Because y and x are integers.

It can be inferred that:

If X= 10, then Y=8, which holds.

So 47 grams are on 10, and 55 grams are on the 8 th.