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:
20 litres
30 litres
40 litres
60 litres
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:
147 comments Page 3 of 15.

Kishan said:   7 years ago
48 litre of glycerin is mixed with 144 litre of rose water. D litre of total mixture is taken out and 32 litre of glycerin and 48 litre of rose water added in the mixture. The final mixture contains 30% of glycerine. Find the quantity of mixture that is taken out? Please solve it.
(3)

Naveen kumar said:   5 years ago
2:1 = 40+20 = 60.
New Ratio 1:2 = 20+40 = 60.
Answer 60.
(3)

Shreyaa said:   5 years ago
40/20+x=1/2 anyone can solve it?
(2)

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.
(1)

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.
(1)

Swathi hj said:   6 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.
(1)

Himanshu said:   5 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.
(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).
(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??


Post your comments here:

Your comments will be displayed after verification.