Alligation or Mixture problems
An alloy of copper and bronze weight 50g. It contains 80% Copper. How much copper should be added to the alloy so that percentage of copper is increased to 90%?

45 gm
60 gm
50 gm
55 gm

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Alligation or Mixture problems
A person has Rs. 5000. He invests a part of it at 3% per annum and the remainder at 8% per annum simple interest. His total income in 3 years is Rs. 750. Find the sum invested at different rates of interest.

Rs. 2000 and Rs. 3000
Rs. 2750 and Rs. 2250
Rs. 2500 and Rs. 2500
Rs. 3000 and Rs. 2000

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Alligation or Mixture problems
In a mixture of 45 liters, the ratio of milk and water is 4:1. How much water must be added to make the mixture ratio 3:2?

1.5 litres
24lLitres
72 litres
15 litres

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