With this information, you can calculate the quantity of grams 40 kilograms is equal to.
¿What is the inverse calculation between 1 gram and 40 kilograms?
Performing the inverse calculation of the relationship between units, we obtain that 1 gram is 2.5e-05 times 40 kilograms.
Which is the same to say that 40 kilograms is 40000 grams.
Forty kilograms equals to forty thousand grams. *Approximation
A gram is two times forty kilograms. *Approximation