CLEAR
Toprankers-Info

+91 7676564400

Mobile App

Get it on Google Play
Discussions
Select Date
Tags:

Articles

Discussions
Submit Discussion
kaushal

· started a discussion

· 1 Months ago

solution (Question: 108519.0 )

is there any other method for solving this

Question:

How much water should be mixed in 69 kg milk of Rs.14 per kg such that on selling it at Rs.13.80 per kg, 20% profit may be earned? 

Options:
A) 15 kg.
B) 25 kg.
C) 18 kg.
D) 2 kg.
Solution:
Ans: (a)

S.P. of mixture = 13.8

Profit = 20% 

\(\therefore\) Cost price =\(13.8\times\cfrac{100}{120}=11.50\)

By the rule of alligation:


Quantity of milk : Quantity of water = 11.5 : 2.5 = 23:5

Let quantity of water mixed be x kg, then


Aliter


varun

· commented

· 1 Months ago

in such question solve for per litre/kg

let us assume ratio of mix of milk to water mix is = X:1

X kg milk CP = 14X / kg

after mix => SP = (X+1)(13.8) /kg

gain = SP-CP ----> [ (13.8X+13.8) - 14X] => [13.8-0.2X]

gain% = (gain/cp) * 100

20 = [(13.8-0.2X)/14X] * 100

solve for X.. ull get X = 69/15.. hence water to be added for 69 Kg milk is 15 kg

pankaj deb

· commented

· 1 Months ago

(x+69)*13.8= 1.2*69*14
=> x = 15

girdhari

· commented

· 1 Months ago

right appr. this one
-logo
We at aim to provide most comprehensive content & test for practice which is carefully divided into various chapters and topics to help you focus on your weak areas.Our Practice mock test gives you unmatched analytics to help you realize your strong areas,time management and improvement areas.Our Short & Crisp notes on each topic will help you to quickly revise the topic along with the tips & tricks of the exams.
More About
-Info
-Info

Mobile App

Get it on Google Play
About Us Campus Ambassador Careers Contact Us Refund Policy

All Rights Reserved Top Rankers

User Policy
Disclaimer
Terms & Conditions