General
Maths Puzzle
Numerical Ability
in what ratio 30% methyl alcohol solution is mixed with 70% methyl alcohol solution so that the resultant solution has 60% solution in it?
Read Solution (Total 2)
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- 30/100 70/100
60/100
1/10 3/10
req. ratio = 1:3 - 9 years agoHelpfull: Yes(0) No(1)
- let the amount of 30% methyl solution be "x" litres and that of 70% methyl solution be "y" litres.
then:
amount of methyl alcohol in "x" litres is 0.3x litre.
amount of methyl alcohol in "y" litres is 0.7y litre.
then:
according to the given condition = (0.3x + 0.7y)/(x+y) = 0.6
on solving the above equation we get:
x/y = 1/3
means x:y = 1:3 - 2 years agoHelpfull: Yes(0) No(0)
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