Alligations and Mixtures Exercise to Practice for Competitive Exams

Alligations and Mixtures Problems : Alligations and Mixtures Questions

Q.21 Rs. 1000 is lent out in two parts, one at 6% simple interest and the other at 8% simple interest. The yearly income is Rs. 75. The sum lent at 8% is….

(A) Rs. 250

(B) Rs. 500

(C) Rs. 750

(D) Rs. 600

Q.22 A jar full of whisky contains 40% of alcohol. A part of this whisky is replaced by another containing 19% alcohol and now the percentage of alcohol was found to be 26. The quantity of whisky replaced is……

(A) 2/5

(B) 1/3

(C) 2/3

(D) 3/5

Q.23 The ratio of milk and water in 66 kg of adulterated milk is 5: 1. Water is added to it to make to ratio 5: 3. The quantity of water added is……

(A) 22 kg

(B) 24.750 kg

(C) 16.500 kg

(D) 20 kg

Q.24 Some amount out of Rs. 7000 was lent at 6% p.a. and the remaining at 4% p.a. If the total simple interest from both the fractions in 5 years was Rs. 1600, the sum lent at 6% p.a. was……

(A) Rs. 2000

(B) Rs. 5000

(C) Rs. 3500

(D) none of these

Q.25 A lump of two metals weighing 18 grams is worth Rs. 74 but if there weights be interchanged, it would be worth Rs. 60.10p. If the price of one metal be Rs. 7.20p per gram, find the weight of the other metal in the mixture?

(A) 6 grams

(B) 8 grams

(C) 12 grams

(D) 14 grams

Q,26 There are two vessels, one containing 12 litres of water, the other 6 litres of wine. If a litres be taken out of each and poured into the other, and if this be repeated four times, find how much wine will be in container one?

(A)9.27

(B) 2.73

(C) 3.27

(D) None of these

Q.27 Two jar containing respectively 3 and 5 litres are filled with mixtures of alcohol and water. In the smaller jar 25% of the mixture is alcohol in the larger 25% of the mixture is water. The jars are emptied into a 9 litres cask. Which is filled up with water. Find the percentage of alcohol in the cask.

(A) 20%

(B) 30%

(C) 40%

(D) 50%

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