Data sufficiency question:
If solution (x) with alcohol (14%) and solution (y) with alcohol (20%) mixed together to form 24 liters of mixture.	Select the correct option
A) 1  B) 2  C) 3  D) 4  E) 3
Explanation:   Let a liters of first solution, and 'b' liters of second solution has been taken.   So using weighted average formula = n1×a1+n2×a2n1+n2n1×a1+n2×a2n1+n2 = n1×14+n2×20n1+n2=15n1×14+n2×20n1+n2=15   ⇒n1=5n2⇒n1n2=51⇒n1=5n2⇒n1n2=51   As total volume was given as 24 liters, first solution = 16×24=416×24=4   So statement 1 is sufficient.   1nswer:1
<result>A</result>
Data sufficiency question:
If solution (x) with alcohol (14%) and solution (y) with alcohol (20%) mixed together to form 24 liters of mixture.