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Q6. | A jar full of whiskey contains 40% alcohol. A part of this whisky is replaced by another containing 19% alcohols and now the percentage of alcohol was found to be 26%. The quantity of whisky replaced of whisky replaced is : | ||||||||||||||||||||||

A. | ^{1}/_{3} |
B. | ^{2}/_{3} |
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C. | ^{2}/_{5} |
D. | ^{3}/_{5} |
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Q7. | One quality of wheat at Rs 9.30 per kg is mixed with another quality at a certain rate in the ratio 8 : 7. If the mixture so formed be worth Rs. 10 per kg. what is the rate pre kg of the second quality of wheat ? | ||||||||||||||||||||||

A. | Rs. 10.30 |
B. | Rs. 10.60 |
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C. | Rs. 10.80 |
D. | Rs. 11 |
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Q8. | In what ratio must water be mixed with milk to gain 16 ^{2}/_{3} | ||||||||||||||||||||||

A. | 1 : 6 |
B. | 6 : 1 |
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C. | 2 : 3 |
D. | 4 : 3 |
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Q9. | A container contains 40 litres of milk. From this container 4 litres of milk was taken out and replaced by water. This process was repeated further two times. How much milk is now contained by the container. | ||||||

A. | 26.34 litres |
B. | 27.36 litres |
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C. | 28 litres |
D. | 29.16 litres |
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Q10. | A dishonest milkman professes to sell his malt at cost price but he mixes it with water and thereby gains 25%, the percentage of water in the mixture is : | ||||||||||||||||||||||

A. | 4% |
B. | 6.25% |
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C. | 20% |
D. | 25% |
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