self
Maths Puzzle
Numerical Ability
Ratio and Proportion
If a and b are mixed in 3:5 ration and b and c are mixed in 8:5 ration if the final mixture is 35 liters, find the amount of b?
Read Solution (Total 5)
-
- Ratio of abc will be 24 :40:25,
Amt of b in 35 litr of mixture of a,b,c = 40*35/89 =15.73 ltrs - 13 years agoHelpfull: Yes(26) No(5)
- the ratio is
A:B:C =24:40:25
b=35*40/89=15.73 - 13 years agoHelpfull: Yes(10) No(4)
- the ratio is
A:B:C =24:40:25
b=35*40/89=15.73 - 13 years agoHelpfull: Yes(5) No(3)
- simple way to get the ratio of three quantities is,
consider, a : b and b : c
multiply the common term in both the ratios, i.e. 'b' with 'a' & 'b' and secondly, multiply c with the common term 'b'
(a*b) : (b*b) : (c*b) , we get,
24 : 40 : 25
24x+40x+25x=35
x=35/89
we need the amt of b, so 40x=40*(35/89)=15.73 - 6 years agoHelpfull: Yes(3) No(0)
- 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 - 9 years agoHelpfull: Yes(0) No(3)
self Other Question