# 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:

135 comments Page 14 of 14.
Sonia arif said:
1 decade ago

Thnks ramesh, you told a simple way.

Ramesh said:
1 decade 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

Purvi said:
1 decade 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

Anil said:
1 decade ago

Your plan and all is correct but your thinking is not correct.

Coolgal said:
1 decade 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??

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