# 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 1 of 14.

Kushal said:   1 year ago
@All.

Simply the solution is;

Mixture = 60 litre.
The ratio is 2: 1 , so milk:water=40:20.
New ratio= 1: 2 , means milk : water should be 40:80.
Water in the new mixture should be 80.
Less water already in the mix 20.
Water to be added now is 60.
(9)

The ratio of milk to water is given as: 2:1.
Let us assume a quantity of milk is 2x ans water is x.
Therefore ,
2x + x = 60 liters (Total mixture).
3x = 60
x = 20 --------(1)

Now milk is 2x therefore 2*20 = 40 liters is milk.
Now new water is added therefore x becomes (20 + x),
now new ration is given 40 /(20+x) = 1/2,
80 = 20 + x.
x = 60 Liters.
(9)

Chith said:   2 years ago
The initial quantity of milk=(2/3)*90 = 60,
Initial quantity of water=(1/3)*90 = 30,
If the ratio is to be 2:3 the water to be added;
(60รยท(30+x)) = 2/3,
X = 60.
(3)

Swetha said:   2 years ago
m:w=2:1
m+w=60
2x+x-=60
x=20.

m=40 w=20.
40:(20+y) = 1:2.
On cross multiplication
y=60.
(3)

Nagasheshu said:   1 year ago
60 lit, 2:1.

2x +1x = 60 lit,
3x = 60,
x = 60/3,
x = 20 lit.
(3)

Sony said:   2 years ago
Total = 60.
Milk: water 2:1 means 40:20.
60*40/20 = 120.
1:2 new ratio, then water added
120 = 40:80.

Then,
120*40/80 = 60.
Thank you.
(2)

Souvik das said:   1 year ago
The ratio of milk and water in 60L is;
m=2.
w=1 (2+1)=3,
milk = 2/3, water=1/3.

milk in 60L = 2/3 * 60= 40L.
water in 60L = 1/3 * 60= 20L,
40:(20+60)=4:8= 1:2.
(2)

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

Dileep said:   2 years ago
40/20+x = 1/2.

Cross multiple;
80 = 20 + x.
x = 60.
(1)