Answer Posted / anu

ans is 15.73lts

a/b=3:5
b/c=8:5

a=3 b=8*5/5==>b=5; c=5*5/8==>25/8

hence a=3 b=5 c=25/8
multipying by 8
becomes a=24 b=40 c=25

Now,

Ingredient a
---------------------
(24/89) x 35 = 9.44 litres

Ingredient b
---------------
40/89 x 35 = 15.73 litres

Ingredient c
--------------------
25/89 x 35 = 9.83 litres

So b=15.73 lts

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