Alligation or Mixture problems
In what ratio must water be added to spirit to gain 25% by selling it at cost price?

1 : 4
4 : 3
3 : 4
4 : 1

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Alligation or Mixture problems
The average monthly salary of employees, consisting of officers and workers, of an organisation is Rs. 3000. The average salary of an officer is Rs. 10,000 while that of a worker is Rs. 2000 per month. If there are total 400 employees in the organisation, find the number of officers and workers separately.

250 , 150
310 , 90
50 , 350
300 , 100

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Alligation or Mixture problems
A milkman claims to sell milk at its cost price, still, he is making a profit of 30% since he has mixed some amount of water in the milk. What is the % of milk in the mixture?

63.22%
86.42%
76.92%
71.02%

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