# Top 100+ Alligation or Mixture Aptitude Questions and Answers - 1

Question: 1

In which ratio must water be mixed with milk costing Rs. 12 per litre to obtain a mixture worth of Rs. 8 per litre?

(A) 1 : 2

(B) 2 : 1

(C) 2 : 3

(D) 3 : 2

Ans: A

Question: 2

In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?

(A) 3 : 1

(B) 3 : 2

(C) 3 : 4

(D) 4 : 5

Ans: B

Question: 3

A sum of Rs. 390 was divided among 450 boys and girls. Each girl gets 50 paise and each boy gets one rupee. How many girls are there among them?

(A) 100

(B) 110

(C) 120

(D) 130

Ans: C

Question: 4

Find the ratio in which rice at 7.20 a kg be mixed with rice at 5.70 a kg to produce a mixture worth Rs. 6.30 a kg.

(A) 1 : 3

(B) 2 : 3

(C) 3 : 4

(D) 4 : 5

Ans: B

Question: 5

A person has 60 pens. He sells some of these at a profit of 12% and the rest at 8% loss. On the whole, he gets a profit of 11%. How many pens were sold at 12% profit and how many at 8% loss?

(A) 54

(B) 57

(C) 58

(D) 60

Ans: B

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