Question

An alloy is made up of 2 metals of density 18g/cubic cm and 10g/cubic cm.find the density of the alloy if:(a)equal volume of metal was used (b)equal masses of the metal were used
Fedel
Answer
oobleck
(a) 1/18 + 1/10 = 1/(45/7 g/cm^3)
(b) (18+10)/2 = 14 g/cm^3