Answer:
5.25 gold bars are needed to get it to weigh the same as 21 gold bars.
Step-by-step explanation:
ratio = 4 blocks of salt : 1 gold bar
to get the amount of gold bars needed to weight the same amount as 21 blocks of salt divide 21 by 4
21 ÷ 4 = 5.25
21 blocks of salt : 5.25 gold bars
5.25 gold bars are needed to get it to weigh the same as 21 gold bars.
I don't know if this is what you're looking for but I hope it helps.
