Alligation and mixture question and answers for bank and ssc exams

Alligation and mixture question and answers for Competition Exams:

11. In what ratio must rice at Rs. 9.30 per kg be mixed with rice at Rs. 10.80 per kg so that the mixture be worth Rs. 10 per kg?

(A) 8 : 5

(B) 5 : 8

(C) 8 : 7

(D) 7 : 8

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12. In what ratio must water be mixed with to gain 20% by selling the mixture at cost price?

(A) 1 : 3

(B) 5 : 1

(C) 3 : 2

(D) 1 : 5

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13. The milk and water in two vessels A and B are in the ratio 4 : 3 and 2 : 3 respectively. In what ratio, the liquids in both the vessels be mixed to obtain a new mixture in vessel C containing half milk and half water?

(A) 1 : 7

(B) 7 : 5

(C) 7 : 3

(D) 7: 4

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14. 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 containers so as to get 12 litres of milk such that the ratio of water to milk is 3: 5?

(A) 4 litres, 8 litres

(B) 6 litres, 6 litres

(C) 5 litres, 7 litres

(D) 7 litres, 5 litres

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15. Tea worth Rs. 126 per kg and Rs. 135 kg are mixed with a third variety in the ratio 1: 1: 2. If the mixture is worth Rs. 153 kg, the price of the third variety per kg will be:

(A) Rs. 170

(B) Rs. 170.50

(C) Rs. 175.50

(D) Rs. 180

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