ALLIGATION MCQ SET 8
1. Two vessels are full of milk with milk – water ratios 1 : 4 and 3 : 8 , respectively . If both are mixed in the ratio 3 : 2 , what is the ratio of milk and water in the new mixture?
(a) 4 : 15
(b) 3 : 7
(c) 63 : 212
(d) N.O.T
Answer: C
2. In two blends of mixture tea , the ratios of Darjeeling and Assam tea are 4 : 7 and 2 : 5 . The ratio in which these two blends should be mixed to get the ratio of Darjeeling and Assam tea is the new mixture as 6 : 13 is
(a) 22 : 35
(b) 26 : 35
(c) 35 : 75
(d) 13 : 22
Answer: A
3. Solution A contains 10% acid and solution B contains 30% acid . In what ratio should solution A be mixed with Solution B to obtain a mixture with 25% acid?
(a) 1 : 2
(b) 3 : 1
(c) 1 : 3
(d) 2 : 1
Answer: C
4. If a dairy mixed cow’s milk which contains 10% fat with buffalo’s milk which contains 20% fat , then the resulting mixture has fat 120/7% of fat . What ratio was the cow’s milk mixed with buffalo’s milk?
(a) 2 : 5
(b) 1 : 5
(c) 2 : 3
(d) 2 : 1
Answer: A
5. 40 litres of a mixture of milk and water contains 10% of water , the amount of water to be added , to make the water content 20% in the new mixture is :
(a) 6 litre
(b) 6.5 litre
(c) 5.5 litre
(d) 5 litre
Answer: D
6. An alloy contains copper and tin and the ratio 3 : 2 . If 250gm of copper is added to this alloy then the copper in it becomes double the quantity of tin in it . What is the amount (in gms) of tin in the alloy ?
(a) 250
(b) 750
(c) 1000
(d) 500
Answer: D
7. How much rice of Rs.4 per kg should be mixed to 15kg of rice of Rs.10 per kg , so as to make a mixture worth Rs.6.50 per kg?
(a) 15 kg
(b) 21 kg
(c) 30 kg
(d) 40 kg
ย Answer: B
8. In what ratio should coffee powder costing Rs.2500/kg be mixed with coffee powder costing Rs.1500/kg so that the cost of the mixture is Rs.2250/kg?
(a) 1 : 4
(b) 4 : 1
(c) 3 : 1
(d) 1 : 3
Answer: C
9. In what ratio must the two types of tea at Rs.180/kg and Rs.280/kg respectively be mixed so that the obtained mixture sold at 320/kg earns a profit of 20%?
(a) 3 : 13
(b) 4 : 13
(c) 1 : 14
(d) 2 : 13
Answer: D
10. A student bought 10 pencils and 8 pens at Rs.150 . He sells pencil at 4% profit and pen at 7% profit . Overall he gains Rs.9 . Find the cost price of each pencil and pen .
(a) 3 , 6
(b) 12.5 , 5
(c) 5 , 12.5
(d) 6 , 3
Answer: C
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