Problema Solution
If A + B = 45 and 1/A + 1/B = 1/10 then find A and B
Answer provided by our tutors
If A + B = 45 and 1/A + 1/B = 1/10
A= 45-B
B/AB + A/AB = 1/10
(A+B)/AB = 1/10
45/(45B-B2) = 1/10
450= 45B-B2
B2-45B+450=0
B=30, A=15
or A=15 , B=30