Alligation and Mixtures

In what ratio must a grocer mix two varieties of cereals costing ₹15 and ₹20 respectively so as to get a mixture worth ₹16.50 per kg ?

• 3: 7

• 5 : 7

• 7 : 3

• 7:5

  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 ₹6.30 a kg.

• 1:3

• 2:3

• 3 : 4

• 4 : 5

   In what ratio must tea at ₹62 per kg be mixed with tea at ₹72 per kg so that the mixture must be worth ₹64.50 per kg?

• 3 : 1

• 3 : 2

• 4 : 3

• 5 : 3

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

• 1:2

• 2:1

• 2 :3

• 3 :2

The cost of Type 1 rice is ₹15 per kg and Type 2 rice is ₹20 per kg. If both Type 1 and Type 2 are mixed in the ratio of 2:3, then the price per kg of the mixed variety of rice is

• ₹18      

• ₹18.50

• ₹19

• ₹19.50

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

• 3 :2

• 3 : 4

• 3 : 5

• 4 : 5

How many kilograms of sugar costing ₹9 per kg must be mixed with 27 kg of sugar costing ₹7 per kg so that there may be a gain of 10% by selling the mixture at ₹9.24 per kg?

• 36 kg

• 42 kg

• 54 kg

• 63 kg

• 1 : 6     

• 6 : 1

• 2 :3

• 4 : 3

A dishonest milkman professes to sell milk at cost price but he mixes it with water and thereby gains 25%. The percentage of water in the mixture is

• 4%       

• 20%

• 25%

Two vessels A and B contain spirit and water mixed in the ratio 5 :2 and 7:6 respectively. Find the ratio in which these mixtures be mixed to obtain a new mixture in vessel C containing spirit and water in the ratio 8 : 5?

• a.    4 : 3                                          

• b. 3 : 4                                           

• c. 5 :6           

• d. 7 : 9