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 11 of 15.
Jhones said:
6 years ago
m-2:1-w.
m-1:2-w.
2:1 4-1=3 difference by addition of water,
2:4
3 * 60/3 = 60.
m-1:2-w.
2:1 4-1=3 difference by addition of water,
2:4
3 * 60/3 = 60.
Nikhita said:
1 decade ago
Why have you multiplied 60 (2/3) for quantity of milk? where did the 3 come from?
Ruchi said:
1 decade ago
2/3 we can obtain from formula here a:b is 2:1.
then the formula is use a/(a+b)
then the formula is use a/(a+b)
Biseswar said:
1 decade ago
Formula = x(a*d-b*c)/c(a+b).
The required water = 60(2*2-1*1)/1(2+1) = 60 lit.
The required water = 60(2*2-1*1)/1(2+1) = 60 lit.
Vishakha said:
9 years ago
Please tell me another way to solve this problem. I can't understand this way.
Nirav said:
1 decade ago
How can we solve this by allegation rule. ? please can anyone explain me. ?
Niranjanasree said:
10 months ago
1x + 2x = 60 +x.
3x - x = 60.
2x = 60,
x = 30.
Water - 2x = 2(30).
= 60.
3x - x = 60.
2x = 60,
x = 30.
Water - 2x = 2(30).
= 60.
(21)
Saadhu said:
9 years ago
I can't able to understand the new ratio 1:2. Someone, please explain me.
Manpreet said:
1 decade ago
Please I don't understand your method. Can you explain in simple way?
Baby Rani said:
9 years ago
I don't understand this mixture method. Please help me to get this.
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