In What proportion must flour at $0.8 per pound be mixed with flour at $0.9 per pound so that the mixture costs $0.825 per pound?
A. 1:3
B. 1:2
C. 1:1
D. 2:1
E. 3:1
Source: Optimus Prep
A. 1:3
B. 1:2
C. 1:1
D. 2:1
E. 3:1
Source: Optimus Prep