# Aptitude - Ratio and Proportion - Discussion

Discussion Forum : Ratio and Proportion - General Questions (Q.No. 5)
5.
In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quantity of water to be further added is:
20 litres
30 litres
40 litres
60 litres
Explanation:

 Quantity of milk = 60 x 2 litres = 40 litres. 3

Quantity of water in it = (60- 40) litres = 20 litres.

New ratio = 1 : 2

Let quantity of water to be added further be x litres.

 Then, milk : water = 40 . 20 + x

 Now, 40 = 1 20 + x 2 20 + x = 80 x = 60. Quantity of water to be added = 60 litres.

Discussion:
135 comments Page 2 of 14.

Kaveri said:   2 years ago
Thank you, Very clear method, @Santan.

Himanshu said:   2 years ago
Milk 2x:1x water.

Previously 2x+1x=60 litres.
3x=60L.
x=60/3=20litrs.

Previously values = milk - > 2*x=40L.
Water->1*x=20L.

Quantity to be further added in water=x.
40/20+x=1/2.
X=60 L.

Teja said:   3 years ago
M:W (initial mixture)
2:1
1:2(required).

Given total volume = 60ltrs.
As milk is not added we the ratio of milk need to be same in both the cases.
2*(1:2)=2:4(required).
2:1(initial).
4-1=3(difference in water in both cases).
2+1=total volume (60).
3-----> 60.

From this, we can say another 3 parts were added to get the required ratio.

Saurabh nikam said:   3 years ago

Deenadayalan DansaG said:   3 years ago
Milk:Water = 40:20 = 2:1.

But we don't change milk we want to add water to change the ratio so 1:2 = 40:80 already 20liter is there so if we add 60ltr the ratio will come that's all.

Naveen kumar said:   3 years ago
2:1 = 40+20 = 60.
New Ratio 1:2 = 20+40 = 60.
(1)

Shubham said:   3 years ago
1+2 = 3.
60/3 = 20.

Water value is change,
But milk remains the same so,
2:1
(1:2)*2= 2:4.

Change in water 4-1 = 3.
Hence,
3*20 = 60.

Sapana said:   3 years ago
Hey guys, I am going to ask one question. The question is here;

In a city, 40% of the adults are illiterate while 85% of the children are literate. If the ratio of the adults to that of the children is 2:3, then what percent of the population is literate?

Swathi hj said:   3 years ago
Thank you @Krishna you explained in the simple way.

Jhones said:   3 years ago
m-2:1-w.
m-1:2-w.
2:1 4-1=3 difference by addition of water,
2:4
3 * 60/3 = 60.