An alcohol solution is formed by mixing two solutions. Solution 1 had a concentration of 20 percent and a volume of 3L while solution 2 had a concentration of 40 percent with a volume of 1L. The resultant solution was named solution 3. Three litres of solution 4 which had an unknown concentration was mixed with solution 3. What must be concentration of solution 4 if that the new resultant solution has a concentration of 50 percent?
An alcohol solution is formed by mixing two solutions. Solution 1 had a concentration of 20 percent and a volume of 3L while solution 2 had a concentration of 40 percent with a volume of 1L. The resultant solution was named solution 3. Three litres of solution 4 which had an unknown concentration was mixed with solution 3. What must be concentration of solution 4 if that the new resultant solution has a concentration of 50 percent?
Option 1 -
86.66 percent
Option 2 -
75 percent
Option 3 -
83.33 percent
Option 4 -
66.66 percent
-
1 Answer
-
Correct Option - 3
Detailed Solution:Sol1
20percent (0.6)
3L
Sol2
40percent (0.4)
1L
Sol3
1L
4L
Sol4
XL
3L
Sol5
3.5L
7L
1 + x = 3.5
x= 2.5
Required percent y =
Taking an Exam? Selecting a College?
Get authentic answers from experts, students and alumni that you won't find anywhere else
Sign Up on ShikshaOn Shiksha, get access to
- 65k Colleges
- 1.2k Exams
- 688k Reviews
- 1800k Answers