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:
149 comments Page 13 of 15.
Augusteen said:
8 years ago
The simple trick is;
60litres mixture ratio 2:1 then 40:20.
In question, water is added to the mixture so milk quantity doesn't change. New ratio 1:2 milk same i.e 40 then 2*40= 80 (water ratio 2) old is 40:20 new is 40:80 (80-20)= 60ans.
60litres mixture ratio 2:1 then 40:20.
In question, water is added to the mixture so milk quantity doesn't change. New ratio 1:2 milk same i.e 40 then 2*40= 80 (water ratio 2) old is 40:20 new is 40:80 (80-20)= 60ans.
Alan rose said:
8 years ago
I am not getting the answer. Please help me to get it.
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.
Usha said:
7 years ago
Hi, nicely explained. Thanks @Ramesh.
Mahender said:
7 years ago
Your way of explanation is good, Thanks @Ramesh.
RRR said:
7 years ago
How come 2/3? it's not understand please explain.
Abhilash said:
7 years ago
Actually, I think we don't need to find the solution for this question so hard.
It says 2:1=60.
So, if its interchange to 1:2 answer is also 60 ltr since the two products do not change changed.
It says 2:1=60.
So, if its interchange to 1:2 answer is also 60 ltr since the two products do not change changed.
Vishal said:
7 years ago
In 2nd case, why should we consider mixture as equals to 40 litre?
Zulfiqar said:
7 years ago
Thanks for everyone for explaining the answer.
Shyam said:
7 years ago
For water calculation of 1st ratio.
Water: 60 * 1/3=20 lit
For second ratio the water ratio will be 2/3
So water to be added: [20+(2/3) * 60]=60 lit.
That's the answer is 'D.
Water: 60 * 1/3=20 lit
For second ratio the water ratio will be 2/3
So water to be added: [20+(2/3) * 60]=60 lit.
That's the answer is 'D.
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