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 10 of 16.
Ravi said:
7 years ago
2:1 = 2 * 60 : 1 * 60,
= 120 : 60.
For 1:2 reverse it, so answer for new proportion is 60.
= 120 : 60.
For 1:2 reverse it, so answer for new proportion is 60.
Sai said:
1 decade ago
@Sai
5x/(1x+5)=5/2
10x=5x+25
5x=25
I think 25 litres is the correct ans what do u say guys ?
5x/(1x+5)=5/2
10x=5x+25
5x=25
I think 25 litres is the correct ans what do u say guys ?
Mohitsharma said:
1 decade ago
Old: 2:1 mix = 60.
New: (1:2)*2 = 2:4.
Water added = (1*60)/4-1 = 20.
New mix = 20+40 = 60.
New: (1:2)*2 = 2:4.
Water added = (1*60)/4-1 = 20.
New mix = 20+40 = 60.
Ashok said:
10 years ago
Very simple in inverted method says.
a : b = b : a.
i.e a/b = b/a so, answer is 60 the same.
a : b = b : a.
i.e a/b = b/a so, answer is 60 the same.
Ragavi said:
10 months ago
60 litres milk: water
2:1 then,
2x + x = 60
x = 20
1 : 2 ?
x + 2x = ?
3x = ?
3 * 20 = 60.
2:1 then,
2x + x = 60
x = 20
1 : 2 ?
x + 2x = ?
3x = ?
3 * 20 = 60.
(62)
Mehbub said:
2 years ago
So the ratio using;
n = a + b/c + d.
2 + 1/1 + 2 = 1.
Q = 1
Therefore,
1*60 = 60litres.
n = a + b/c + d.
2 + 1/1 + 2 = 1.
Q = 1
Therefore,
1*60 = 60litres.
(14)
Rakesh said:
1 decade ago
You can apply 4th std formula:
Ratio:
2/1.
1/2.
Liter:
60.
(?).
Then 1/2x60x2/1 = 60.
Ratio:
2/1.
1/2.
Liter:
60.
(?).
Then 1/2x60x2/1 = 60.
Thanglalmawn Gangte said:
2 years ago
By Using the relation,
X(ad-bc)/c(a+b)
We get,
= 60(2×2-1×1)/1(2+1),
= 60(4-1)/3,
= 60.
X(ad-bc)/c(a+b)
We get,
= 60(2×2-1×1)/1(2+1),
= 60(4-1)/3,
= 60.
(6)
Ramesh said:
1 decade ago
How can we assume that the second ratio (1:2) given in the problem for next 60 liters ?
ABC said:
1 decade ago
If total Quantity is 60 litres then how will you add quantity of water 60 litres again?
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