Alligation or Mixture problems How much chicory at Rs. 24 a kg should be added to 15 kg of tea at Rs. 60 a kg as to make the mixture worth Rs. 39 a kg? 20 kg 21 kg 27 kg 18 kg 20 kg 21 kg 27 kg 18 kg ANSWER DOWNLOAD EXAMIANS APP
Alligation or Mixture problems In a courtyard there are many chickens and goats. If heads are counted, it comes to 100 but when legs are counted, it comes to 320. Find the number of chickens and goats in the courtyard. 50 , 50 40 , 60 20 , 50 30 , 70 50 , 50 40 , 60 20 , 50 30 , 70 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Average no. of legs per head = (320 / 100) = (16 / 5) or, 3 : 2 No. of goats = (3 / 3 + 2) × 100 = 60 No. of chickens = 100 ? 60 = 40.
Alligation or Mixture problems If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain? 25% 19% 17% 30% 25% 19% 17% 30% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP He has gain = 15 - 12 = 3,Gain% = (3/12) x 100 = (100/4) = 25.He has 25% gain.
Alligation or Mixture problems A sum of Rs. 70 is divided among 10 children. Each boy gets Rs. 10 whereas a girl gets Rs. 5. If the number of boys is 4, find the number of girls. 7 6 9 8 7 6 9 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of girls / Number of boys = (3 / 2) Number of girls = (3 / 2) × 4 = 6
Alligation or Mixture problems From a tank of petrol, which contains 200 litres of petrol, the seller replaces each time with kerosene when he sells 40 litres of petrol(or its mixture). Everytime he sells out only 40 litres of petrol(pure or impure). After replacing the petrol with kerosen 4th time, the total amount of kerosene in the mixture is 118.08L 81.92L None of these 96L 118.08L 81.92L None of these 96L ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The amount of petrol left after 4 operations = 200 × 1 - 40 200 4 = 200 × 4 5 4 = 200 × 256 625 = 81.92 litres Hence the amount of kerosene = 200 - 81.92 = 118. 08 litres
Alligation or Mixture problems A container contains 40 litres of milk. From this container 4 litres of milk was taken out and replaced by water. This process was repeated further two times. How much milk is now contained by the container? 27.36 litres 28 litres 26.34 litres 29.16 litres 27.36 litres 28 litres 26.34 litres 29.16 litres ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Amount of milk left after 3 operations = [ 40 ❨ 1 - 4 ❩ 3 ] litres 40 = ❨ 40 x 9 x 9 x 9 ❩ = 29.16 litres.
EXAMIANS