Question

If a and b are mixed in 3:5 ration and b and c are mixed in 8:5 ration if the final mixtur e is 35 liters, find the amount of b?

Answer 1

Answer:

Let b = amt of b in each mixture

:

Put a & c in terms of b

:

a%2Fb = 3%2F5

5a = 3b

a = 3%2F5b

a = .6b

:

b%2Fc = 8%2F5

8c = 5b

c = 5%2F8b

c =.625b

:

Add together

a + b + b + c = 35

.6b + 2b + .625b = 35

3.225b = 35

b = 35%2F3.225

b = 10.85 litres in the final mixture