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:
153 comments Page 4 of 16.
Swathi hj said:
7 years ago
Thank you @Krishna you explained in the simple way.
(1)
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)
Himanshu said:
6 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.
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.
(1)
Sukri said:
5 years ago
Initially we have 60lt in the ratio 2:1.
i.e: 40lt milk & 20lt water.
Think logically,
Our condition is to make the ratio as 1:2.
i.e: 40lt milk & 80lt water.
Then 40 : 80 it will become 1:2.
So, the required amount of water will be 80 - 20 (i.e: final quantity - initial quantity -> then we can get req amount of water to make the ratio as 1:2).
i.e: 40lt milk & 20lt water.
Think logically,
Our condition is to make the ratio as 1:2.
i.e: 40lt milk & 80lt water.
Then 40 : 80 it will become 1:2.
So, the required amount of water will be 80 - 20 (i.e: final quantity - initial quantity -> then we can get req amount of water to make the ratio as 1:2).
(1)
Shivam d said:
5 days ago
Total is 60, and the current ratio is 2:1, which means milk is twice the amount of water is 40 + 20 = 60,
new 1:2 means water is double of milk, then milk was 40 L.
So double of 40 is 80, and we have 20 L of water.
And 20 + 60 = 80 So, we added 60 L more water.
And the answer is 60L.
new 1:2 means water is double of milk, then milk was 40 L.
So double of 40 is 80, and we have 20 L of water.
And 20 + 60 = 80 So, we added 60 L more water.
And the answer is 60L.
(1)
Coolgal said:
2 decades ago
I DON UNDERSTAND..IN 2:1 RATIO MILK IS 40L AND WATER IS 20L..IN 1:2 RATIO,YOU CAN JUST SAY AS MILK 20L AND WATER 40L NO?IF SO,THE WATER THAT IS TO BE ADDED FURTHER FROM THE PREVIOUS MIXTURE TO MAKE IT TO 40L IS JUST 20L NO..?WHY TO DO SUCH CALCULATIONS??
Anil said:
2 decades ago
Your plan and all is correct but your thinking is not correct.
Purvi said:
2 decades ago
in this que., it doesn't say that the new mixture's quantity is same as the before ones(60lr).Also we can't assume 60lr for the new mixture..So, as per the newmix. it's quant. is
water : 2/3 : 80 lr
milk : 1/3 : 40 lr
____________________
total: 120 lr
water : 2/3 : 80 lr
milk : 1/3 : 40 lr
____________________
total: 120 lr
Ramesh said:
2 decades ago
Mixture = 60 litre
ratio is 2: 1 , so milk:water=40:20
New ration= 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
ratio is 2: 1 , so milk:water=40:20
New ration= 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
Sonia arif said:
2 decades ago
Thnks ramesh, you told a simple way.
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