Question : 80 litres of a mixture contains milk and water in a ratio of 27 : 5. How much more water is to be added to get a mixture containing milk and water in a ratio of 3 : 1?
Option 1: 5 litres
Option 2: 10 litres
Option 3: 15 litres
Option 4: 20 litres
New: SSC CHSL tier 1 answer key 2024 out | SSC CHSL 2024 Notification PDF
Recommended: How to crack SSC CHSL | SSC CHSL exam guide
Don't Miss: Month-wise Current Affairs | Upcoming government exams
Correct Answer: 10 litres
Solution :
Given: 80 litres of a mixture contains milk and water in a ratio of 27 : 5.
Quantity of milk in 80 litres = $\frac{27}{32}$ × 80 = 67.50
Quantity of water in 80 litres = 80 – 67.50 = 12.50
Let $x$ litres of water be mixed.
So, the new ratio is 3 : 1.
⇒ $\frac{67.5}{12.5+x}=\frac{3}{1}$
⇒ $67.5=37.5+3x$
⇒ $3x=30$
⇒ $x=10$ litres
Hence, the correct answer is 10 litres.
Related Questions
Know More about
Staff Selection Commission Combined High ...
Result | Eligibility | Application | Admit Card | Answer Key | Preparation Tips | Cutoff
Get Updates Brochure
Your Staff Selection Commission Combined Higher Secondary Level Exam brochure has been successfully mailed to your registered email id “”.
