Twice a certain number is tripled. the resulting number is

The resulting number is 6 times the original number.

Let the original number be x.

Now, if we twice this number x then we have the number as: 2x

and now this number is tripled.

This means that the resulting number is given by:

3(2x)=6x

Hence, the resulting number is 6 times the original number x.

the weight of the object inside the box!