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Alligation or Mixture problems

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?

19%
25%
30%
17%

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 man buys milk at Rs. 5 a litre and mixes it with water. By selling the mixture at Rs. 4 a litre he gains 121/2 % on his outlay. How much water did each litre of the mixture contain?

13 litre 45
None of these
32 litre 13
32 litre 45

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Alligation or Mixture problems
A merchant has 160 kgs of wheat. He sells a part of it at 10% profit and the rest of 6% loss. If he incurs 4% loss on the whole, find the quantity for each part.

160 kgs
150 kgs
120 kgs
140 kgs

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

According to figure we can find that the ration would be 1 : 7.Quantity sold at 10% profit = 1 / (1 + 7)× 160 = 20 kgs. Quantity sold at 6% loss = (160 ? 20) = 140 kgs.

Alligation or Mixture problems
A merchant has 50 kg. of sugar part of which he sells at 8 % profit and the rest at 18 % profit. He gains 14 % on the whole. The quantity sold at 18 % profit is ?

30 kg
35 kg
20 kg
15 kg

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Alligation or Mixture problems
In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 kg?

7 : 3
3 : 7
7 : 5
5 : 7

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

By the rule of alligation: Cost of 1 kg pulses of 1st kind Cost of 1 kg pulses of 2nd kind Rs. 15 Mean Price Rs. 16.50 Rs. 20 3.50 1.50 ∴ Required rate = 3.50 : 1.50 = 7 : 3.

Alligation or Mixture problems
In what proportion water must be added to spirit to gain 20% by selling it at the cost price?

1:7
1:5
1:8
1:6

ANSWER DOWNLOAD EXAMIANS APP
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