## Sunday, 14 February 2016

### LIC AAO QUIZ:ALLIGATION OR MIXTURE

1. In  a  mixture  of  milk  and  water  the proportion of water by weight was 75%. If in the 60 gms mixture 15 gms water was added,  what  would be  the percentage  of water in the new mixture ?
(1) 75%             (2) 88%
(3) 90%             (4) 100%
(5) None of these
2. A man purchased 35 kg of rice at the rate of Rs. 9.50 per kg and 30 kg at the rate of Rs.  10.50  per  kg.  He  mixed  the  two. Approximately, at what price (in Rupees) per kg should he sell the mixture to make 35 per cent profit in the transaction ?
(1) 12               (2) 12.50
(3) 13               (4) 13.50
(5)None of these
3. In 1kg mixture of sand and iron, 20%  is iron. How much sand should be added, so that the proportion of iron becomes 5% ?
(1) 3 kg          (2) 4 gms
(3) 5 gms       (4) 6 kg
(5) None of these

4. The wheat sold by a grocer contained 10% low quality wheat. What quantity of good quality wheat should be added to 150 kgs of  wheat  so  that  the  percentage  of  low quality wheat becomes 5% ?
(1) 150 kgs          (2) 135 kgs
(3) 50 kgs            (4) 85 kgs
(5) None of these
5. A grocer purchased 2 kg. of rice at the rate of Rs. 15 per kg. and 3 kg. of rice at the rate of Rs. 13 per kg. At what price per kg should he sell the mixture to earn 331/3% profit on the cost price ?
(1) Rs. 28.00         (2) Rs. 20.00
(3) Rs. 18.40        (4) Rs. 17.40
(5) None of these
6) When  one  litre  of  water  is  added  to  a mixture of acid and water, the new mixture contains 20% acid. When one litre of acid is  added  to  the  new  mixture,  then  the resulting mixture contains 33 1/3%  acid. The percentage of acid in the original mixture was
(1) 20%                (2) 22%
(3) 24%                (4) 25%
5)Non of these
7. Two barrels contain a mixture of ethanol and gasoline. The content of the ethanol is 60%  in  the  first  barrel  and  30%   in  the second  barrel.  In  what  ratio  must  the mixtures  from  the  first  and  the  second barrels  be  taken  to  form  a  mixture containing 50% ethanol ?
(1) 1 : 2                (2) 2 : 1
(3) 2 : 3                (4) 3 : 2
5)Non of these
8. The wheat sold by a grocer contained 10% low quality wheat. What quantity of good quality wheat should be added to 150 kgs of  wheat  so  that  the  percentage  of  low quality wheat becomes 5% ?
(1) 150 kgs (2) 135 kgs
(3) 50 kgs (4) 85 kgs
(5) None of these
9. A and B are two alloys of gold and copper prepared by mixing metals in the ratio 7 : 2 and 7 : 11 respectively. If equal quantities of the alloys are melted to form a third alloy C, the ratio of gold and copper in C will be :
(1) 5 : 7              (2) 5 : 9
(3) 7 : 5              (4) 9 : 5
5)Non of these
10. A container has 30 litres of water. If 3 litres of water is replaced by 3 litres of spirit and this operation is repeated twice, what will be the quantity of water in the new mixture ?
(1) 24 litres          (2) 23 litres
(3) 24.3 litres       (4) 23.3 litres
(5) None of these