A can contains a mixture of 2 liquids A and B in proportion 7 : 5 when 9 liters

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Question
A can contains a mixture of 2 liquids A and B in proportion 7 : 5 when 9 liters of mixture are drawn off and the can is filled with B, the proportion of A and B becomes 7 : 9. How many liters of liquid A was contained by the can initially?
Options
A. 25
B. 10
C. 20
D. 21

Correct Answer

21

Explanation

Alligation or Mixture problems

Search Results

1.
From a cask of wine, containing 64 liters, 8 liters are drawn out and the cask is filled up with water. If the same process is repeated a second, then a third time, what will be the number of liters of wine left in the cask?
Options
A. 42 1 kg 8
B. 42 3 kg 8
C. 48 7 kg 8
D. 42 7 kg 8

2.
3 glasses of capacity 2 liters, 5 liters and 9 liters contain mixture of milk and water with milk concentrations 90 %, 80 % and 70 % respectively. The contents of 3 glasses are emptied into a large vessel. Find the milk concentration and ratio of milk to water in the resultant mixture ?
Options
A. 121 : 39
B. 131 : 49
C. 39 : 121
D. 49 : 131

3.
A man buys milk at Rs. 5 a litre and mixes it with water. By selling the mixture at Rs. 4 a litre he gains 12¹/₂ % on his outlay. How much water did each litre of the mixture contain?
Options
A. 32 litre 45
B. 13 litre 45
C. 32 litre 13
D. None of these

4.
A man has whisky worth Rs. 22 a liter and another lot worth Rs. 18 a liter. Equal quantities of these are mixed with water to obtain a mixture of 50 liters worth Rs. 16 a liter. Find how much water the mixture contains?
Options
A. 5 litre
B. 10 litre
C. 15 litre
D. 20 litre

5.
Rs. 1000 is lent out in two parts, one at 6 % simple interest and the other at 8 % simple interest. The yearly income is Rs. 75. The sum lent at 8 % is ?
Options
A. Rs. 250
B. Rs. 500
C. Rs. 750
D. Rs. 600

6.
15 liters of a mixture contains 20 % alcohol and the rest water. If 3 liters of water be mixed in it, the % of alcohol in the new mixture will be ?
Options
A. 17
B. 16 2 3
C. 18 1 2
D. 15

7.
A milk seller pays Rs. 500 per kiloliter for his milk. He adds water to it and sells the mixture at 56 P a liter, thereby making altogether 40 % profit. Find the proportion of water to milk which his customers receive?
Options
A. 1 : 4
B. 2 : 3
C. 1 : 5
D. 4 : 1

8.
How many bananas at 5 for Re. 1�20 should be mixed with 300 bananas at 6 for Rs. 2�10, so that they should all be worth Rs. 3�60 a dozen?
Options
A. 350
B. 280
C. 320
D. 250

9.
Fresh fruit contains 72 % water and dry fruits contains 20 % water. How much dry fruit from 100 kg of fresh fruit can be obtained?
Options
A. 32 kg
B. 33 kg
C. 30 kg
D. 35 kg

10.
From a vessel filled with alcohol 1/5 of its contents is removed and the vessel is then filled up with water. If this be done 5 times in succession, what proportion of the alcohol originally contained in the vessel will have been removed from it?
Options
A. 1024 3125
B. 2101 3125
C. 1024 2101
D. None of these

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