A jeweler is making sapphire rings using 2 sapphires on every 1 ring. If the jeweler has 12 sapphires and 10 rings, what is the theoretical yield?

A. 5 sapphire rings

B. 6 sapphire rings

C. 10 sapphire rings

D. 12 sapphire rings

6 is the answer hope it works

For every one ring he uses 2 sapphires. The jeweler has with him 12 sapphires and 10 rings, we have to find how many sapphire rings he can make with it.

There are 12 sapphires

so if 2 sapphires make 1 ring

then 12 sapphires make - - 1/2 x 12 = 6 rings

therefore altogether he can make 6 sapphire rings

answer is B.