Q6. 
8 litres are drawn from a cask filled with wine and is then filled with water. This operation is performed three more times. The ratio of the quantity of wine now left in cask to that of the total solution is 16:81. How much wine did the cask hold originally? 
A.  24 litres 

B.  45 litres 

C.  49 litres 

D.  44 litres 
Q8. 
A vessel is filled with liquid, 3 parts of which are water and 5 parts syrup. What part of the mixture must be drawn off and replaced with water so that the mixture may be half water and half syrup? 
A.  7/11 

B.  6/7 

C.  1/5 

D.  2/7 
Q9. 
A milk vendor has 2 cans of milk .The first contains 25% water and the rest milk. The second contains 50% water. How much milk should he mix from each of the container so as to get 12 litres of milk such that the ratio of water to milk is 3:5? 
A.  6 litres 

B.  1 litres 

C.  8 litres 

D.  7 litres 
Q10. 
Teas worth Rs. 126 per kg and Rs. 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Rs 153 per Kg , the price of the third variety per Kg will be? 
A.  Rs. 147.50 

B.  Rs. 785.50 

C.  Rs. 175.50 

D.  Rs. 258.50 