Aptitude:: Alligation or Mixture

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8 litres are drawn from a cask full of wine and is then filled with water. This operation is performed three more times. The ratio of the quantity of wine now left in cask to that of water is 16 : 65. How much wine did the cask hold originally?

A. 18 litres B. 24 litres
C. 32 litres D. 42 litres

The cost of Type 1 rice is Rs. 15 per kg and Type 2 rice is Rs. 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:

A. Rs. 18 B. Rs. 18.50
C. Rs. 19 D. Rs. 19.50

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 : 2 B. 3 : 4
C. 3 : 5 D. 4 : 5

Find the ratio in which rice at Rs. 7.20 a kg be mixed with rice at Rs. 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

In what ratio must water be mixed with milk to gain 16% on selling the mixture at cost price?

A. 1 : 6 B. 6 : 1
C. 2 : 3 D. 4 : 3

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