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if a and b are mixed in 3:5 ration and b,c are mixed in 8:5
ration if the final mixture is 35 litres, find the amount
of b in the final mixture
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Answer Posted / vignesh
a/b=3/5,b/c=8/5.
a/(a+b)=3/8,b/(b+c)=8/13
a=((a+b)*3)/8-----1
(b+c)=13*b/8------2
a+b+c=35-----3
substituting the value 1&2 in 3
(((a+b)*3)/8)+13*b/8=35
finally we get
3a+16b=280-----4
solving one we get
5a-3b=0-----5
multiplying eqn 4 by 5 and eqn 5 by 3,we get,subtracting 4&5
15a+80b=1400
15a+9b=0
we get b=15.73
| Is This Answer Correct ? | 8 Yes | 1 No |
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