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Question 1
8 litres of water is added to 32 litres of a solution containing 20%, of alcohol in water. What is the approximate concentration of alcohol in the solution now?
Question 2
In a mixture of 126 litres the ratio of water and milk is 2 : 5 respectively. How much water (in litre) must be added to make the ratio of water and milk as 2 : 3 respectively?
Question 3
50 litres of mixture of alcohol and water is the ratio of 1 : 4 respectively. If 10 litres of mixture is taken off and replaced with 10 litres of water. Then what is the new ratio of alcohol and water respectively?
Question 4
A vessel contains a solution of two liquids A and B in the ratio 5 : 3. When 10 litres of the solution is taken out and replaced by the same quantity of B, the ratio of A and B in the vessel becomes 10 : 11. The quantity (in litres) of the solution, in the vessel was ______.
Question 5
In what ratio wheat at Rs 32/kg should be mixed with wheat at Rs 24/kg so that on selling the mixture at Rs 39/kg there is a profit of 30%?
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Mar 24MPSC
