LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
21 views
in Aptitude by (30.0k points)
closed by

In a dye company, dark blue dye solution has a 27% concentration. Another lighter shade dye solution has an 11% concentration. How many liters’ of the second solution must be added to the 10L of the first solution to make a solution of 13% concentrated?


1. 68 L
2. 70 L
3. 72 L
4. 78 L
5. 75 L

1 Answer

0 votes
by (54.3k points)
selected by
 
Best answer
Correct Answer - Option 2 : 70 L

Given:

Concentration of first solution = 27%

Concentration of second Solution = 11%

Concentration of final solution = 13%

Calculation:

Let required amount of second solution to be added = ‘a’ L

∴ (27 × 10 + 11a)/(10 + a) = 13

⇒ 270 + 11a = 130 + 13a

⇒ 2a = 140

⇒ a = 70

70L of second solution must be added.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...