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Question 1
One type of liquid contains 25% of milk, the other contains 50% of milk. A container is filled with 6 parts of the first liquid and 4 parts of the second liquid. The percentage of milk in the mixture is:
Question 2
Ram invests Rs.9000 at the rate of 5%.How much more should he invest at the rate of 8% so that he can earn at total profit of 6%:
Question 3
Zinc is 17 times as heavy as water and silver is 8 times as heavy as water. In what ratio should these be mixed to get an alloy which is 15 times as heavy as water?
Question 4
Shyam buys a pen at 4% discount and a copy at 12% discount. She overall gets a discount of 10%. If the marked price of both are Rs. 200/item then find the total selling price of copies, if 8 items in total are purchased.
Question 5
An alloy contains only zinc and copper. One such alloy weighing 25 gm contains zinc and copper in the ratio of 2 : 3 by weight. If 20 gm of zinc is added then find what amount of copper has to be removed from the alloy such that the final alloy has zinc and copper in the ratio of 4 : 1 by weight?
Question 6
A 24 liters cylinder contains a mixture of oxygen and nitrogen, the volume of oxygen being 36% of total volume. A few liters of the mixture is released and an equal amount of nitrogen is added. Then the same amount of the mixture as before is released and replaced by nitrogen for the second time .As a result the oxygen content becomes 4% of the total volume. How many liters of mixture is released each time?
Question 7
A man purchased two chairs in Rs.1200; he sells the first chair at 
of its cost price and the second chair at 
of its cost price. If during the whole transaction he earns a profit of Rs.120.Find the cost price of cheaper chair?
of its cost price and the second chair at of its cost price. If during the whole transaction he earns a profit of Rs.120.Find the cost price of cheaper chair? Question 8
A goldsmith has two qualities of gold, one of 22 carats and another of 16 carats purity. In what ratio should he mix both to make a jewelry of 18 carat purity?
Question 9
The volume of a mixture of X and Y in the ratio 16:25 is 155L more than the volume of mixture of Y and Z in the ratio 5:17 and the quantity of Z in mixture is 102L. If two mixture are mixed find the new ratio between Z and Y.
Question 10
Three containers whose volumes are in the ratio of 2:3:4 are full of mixture of spirit and water. In the first container the ratio of spirit and water is 4:1, in 2nd container the ratio is 11:4 and in the 3rd container ratio is 7:3. All the three mixtures are mixed in a big container. The ratio of spirit and water in the resultant mixture is?
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May 17ESE & GATE EE
