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:
Answer: Option
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:
148 comments Page 8 of 15.
Shubham said:
6 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.
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.
(1)
ABHINAV KUMAR said:
9 years ago
ANOTHER WAY WE CAN SOLVE BY,
Let quantity of water to be added further be x litres.
2:1
1:2 :: 60:x.
(2/1)*(1/2) = 60/x.
x = 60.
Let quantity of water to be added further be x litres.
2:1
1:2 :: 60:x.
(2/1)*(1/2) = 60/x.
x = 60.
Priya said:
8 years ago
You are right @Ramesh.
But they didn't mention that the 2nd statement 1:2 Is related to the 1st statement, then how you are relating?
But they didn't mention that the 2nd statement 1:2 Is related to the 1st statement, then how you are relating?
Amit kumar said:
8 years ago
@ALL.
The initial ratio 2:1 and after that 1:2 its only possible when the same amount of liquid is added in the mixture. That's it.
The initial ratio 2:1 and after that 1:2 its only possible when the same amount of liquid is added in the mixture. That's it.
Pranav said:
1 year ago
first water.= 20 liter
second water. = 40 litres
Here, they ask for the quantity of water total.
So, 20 + 40 = 60 => answer.
second water. = 40 litres
Here, they ask for the quantity of water total.
So, 20 + 40 = 60 => answer.
(21)
Vishal said:
7 years ago
In 2:1 ratio milk +water=40 + 20 = 60 then,
In 1:2 ratio milk+water=20 + 40 = 60 now only total of water from both ratio is 60.
In 1:2 ratio milk+water=20 + 40 = 60 now only total of water from both ratio is 60.
(1)
Shrikant said:
1 decade ago
Here is one shortcut for such type of problems.
Given quantity x lit.
Ratio p : q.
Ratio a : b.
Formula is x(pb-qa)/a(p+q).
Given quantity x lit.
Ratio p : q.
Ratio a : b.
Formula is x(pb-qa)/a(p+q).
Sandhya said:
9 years ago
It is so simple.
First value of water = 1.
Second value of water = 3.
Therefore:
1/3 * 60 = 20
2/3 * 60 = 40
20 + 40 = 60.
First value of water = 1.
Second value of water = 3.
Therefore:
1/3 * 60 = 20
2/3 * 60 = 40
20 + 40 = 60.
Chandu said:
7 years ago
First, the ratio is 2:1 is 40: 20,
New ratio is 1: 2 is 20:40.
We want the water so we can add water such that 20+40=60.
New ratio is 1: 2 is 20:40.
We want the water so we can add water such that 20+40=60.
(1)
Raja said:
7 years ago
First ratio:-2:1.
Milk qunts 1/2*60=30,
Water qunts 60-30=30,
New ratio:-1:2
ratio quantity doubled,
2*30=60lts.
Milk qunts 1/2*60=30,
Water qunts 60-30=30,
New ratio:-1:2
ratio quantity doubled,
2*30=60lts.
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