There are 6C3 = 20 such combinations.
abc, abd, abe, abf
acd, ace, acf, ade
adf, aef, bcd, bce
bcf, bde, bdf, bef
cde, cdf, cef, def
Answer:
Step-by-step explanation:
I can't think of anything extra that I can add to this.
nickels / dimes = 21/13
This is as low as the ratio goes. There is no common factor.
Process efficiency is a measure of the ratio of process outputs to inputs.