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Alligation or Mixture problems

Alligation or Mixture problems
729 ml. of a mixture contains milk and water in the ratio 7 : 2. How much more water is to be added to get a new mixture containing milk and water in ratio 7 : 3?

520 ml
600 ml
None of these
710 ml

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Alligation or Mixture problems
In a 100 litre of mixture the ratio of milk and water is 6:4. How much milk must be added to the mixture in order to make the ratio 3 : 1?

45
60
85
55

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let M litres milk be added => 60   +   M 40   =   3 1 => 60 + M = 120 => M = 60 lit.

Alligation or Mixture problems
In what ratio must a grocer mix sugar at 72 paise per kg with sugar at 48 paise per kg. So that by selling the mixture at 63 paise per kg he may gain 1 of his out-lay? 6

1 : 3
3 : 2
3 : 1
2 : 3

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Alligation or Mixture problems
How much pepsi at Rs.6 a litre is added to 15 litre of 'dew' at Rs. 10 a litre so that the price of the mixture be Rs.9 a litre?

None of these
10
5
8

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let x litre pepsi is required.     (10-9)=1           :                3=(9-6)   Therefore  in 1:3 one part = 5    =>  x= 5 litres

Alligation or Mixture problems
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.

3:4
4:5
2:3
1:3

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

By the rule of alligation:Cost of 1 kg rice of 1st kind                  Cost of 1 kg rice of 2nd kind        Required ratio = 60 : 90 = 2 : 3

Alligation or Mixture problems
A vessel, full of water, weighs 24 kg. When the vessel is 1/4 full, it weighs 9 kg. Find the weight of empty vessel.

4 kg
5 kg
3 kg
8 kg

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the weight of vessel be xWeight of water = 24 ? x? (24 ? x)/4 + x = 9? 24 ? x + 4x = 36? 3x = 12? x = 4 kg

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