Alligation or Mixture problems
In what ratio must water be mixed with milk to gain 16⅔% on selling the mixture at cost price?

6 : 1
1 : 6
4 : 3
2 : 3

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Alligation or Mixture problems
A dishonest milkman professes to sell his milk at cost price but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is:

4%
20%
25%
6¼%

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Alligation or Mixture problems
A shopkeeper has 50 kgs of rice. He sells a part of it at 20% profit and the rest at 40% profit. If he gains 25% on the whole, find the quantity of each part.

37.5 kgs and 12.5 kgs
21.5 kgs and 23.5 kgs
12.5 kgs and 37.5 kgs
23.5 kgs and 21.5 kgs

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