A live pig weighed 386.7 lbs. After it was cleaned, when it weighed 319.6254 lbs. How much weight was lost?

Sagot :

A live pig weighed 386.7 lbs. After it was cleaned, when it weighed 319.6254 lbs. How much weight was lost?

First the weight before it was cleaned       = 
386.7 lbs
second the weight after it was cleaned     = 319.6254 lbs

weight lost =        386.7          lbs
                          -  319.6254   lbs
                                67.0746  lbs