45 Views

Question : If 80 litres of milk solution has 60% milk in it, then how much milk should be added to make milk 80% in the solution?

Option 1: 70 litres

Option 2: 50 litres

Option 3: 60 litres

Option 4: 80 litres


Team Careers360 3rd Jan, 2024
Answer (1)
Team Careers360 4th Jan, 2024

Correct Answer: 80 litres


Solution : Given: 80 litres of milk solution has 60% milk in it.
Milk in the solution $=\frac{60}{100}×80=48$
Water in the solution $80-48=32$
Let the added milk be $x$ litres to make milk 80% in the solution.
So, $\frac{48+x}{80+x}=\frac{80}{100}$
$⇒240+5x=320+4x$
$\therefore x =80$
Hence, the correct answer is 80 litres.

SSC CGL Complete Guide

Candidates can download this ebook to know all about SSC CGL.

Download EBook

Know More About

Related Questions

TOEFL ® Registrations 2024
Apply
Accepted by more than 11,000 universities in over 150 countries worldwide
Manipal Online M.Com Admissions
Apply
Apply for Online M.Com from Manipal University
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books