HackerRank Mixture and Alligation Quiz -1

Question 1

Time: 00:00:00
A restaurant owner sells roohafza, and a 48-litre mixture is to be divided in a 3:1 ratio of roohafza to water. What would the current water-roohafza ratio be if 4 litres of roohafza and 3 litres of water are applied to the mixture?

3:8

3:8

3:6

3:6

4:7

4:7

5:9

5:9

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Question 2

Time: 00:00:00
The ratio of milk to water in a mixture is 4:5. The ratio changes to 8:13 when the 21 litre mixture is replaced by water. Determine the amount of water.

56.6

56.6

54.3

54.3

62.2

62.2

53.8

53.8

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Question 3

Time: 00:00:00
Radha purchased a canning jar with juice with a capacity of 30 litres. Three litres of juice is removed from this jar and filled with water. This procedure was performed two more times. How much juice does Radha have now?

22

22

23.45

23.45

21.87

21.87

None of the above

None of the above

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Question 4

Time: 00:00:00
Karishma bought wheat for Rs. 124 per kg and Rs. 130 per kg, which she blended with a third wheat choice in a 1:1:2 ratio. If the combination is worth Rs. 150 per kg, what is the value of the third variation per kg?

173

173

176

176

189

189

167

167

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Question 5

Time: 00:00:00
A Glucose water solution contains 10% sugar. Another solution contains 3% sugar. To make a 8 percent sugar solution, how many litres of the second solution must be added to the 25L of the first solution?

10

10

20

20

22

22

14

14

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Question 6

Time: 00:00:00
In 210 grams of powder, the ratio of platinum to gold is 1:2. To make the ratio 2:1, add the following amount of platinum (in gram):

190

190

210

210

180

180

165

165

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Question 7

Time: 00:00:00
Ronnie gives his pal a jar containing a mixture. His friend drew 10 litres of liquor from it, which he then filled with water. This procedure is repeated two times more. The ratio of the amount of liquor left in the container to the amount of water is 27:37. What was the actual capacity of the jar?

5.71

5.71

4.5

4.5

5.85

5.85

none of these

none of these

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Question 8

Time: 00:00:00
Tang concentration is 80 percent in a 4 litre mixture of tang and water. Vishakha removes 20% of the overall mixture and replaces it with the same amount of water. She wants to make juice with the total amount of new mixture, but the water concentration should be 60%. How many more litres of water will she need to make juice?

2.75

2.75

2.60

2.60

2.9

2.9

2.4

2.4

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Question 9

Time: 00:00:00
Raju is a village boy who makes his living from farmland. In a 1: 2 ratio, he blends two varieties of dal, each costing Rs. 36 per kg and Rs. 24 per kg. Find the quantity of dal at a cost of Rs. 24 per kg used in the mixture that Raju sold in the market for Rs. 2100 to make a 25% profit.

45 kg

45 kg

34 kg

34 kg

40 kg

40 kg

53 kg

53 kg

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Question 10

Time: 00:00:00
Radhika has a bottle that holds 208 litres of a combination of Fanta and water, mixed in an 11:5 ratio. '8x' litres of mixture are removed from the bottle and replaced with '3x – 4' litres of water, resulting in a 4:3 ratio of fanta to water in the bottle. Calculate the difference in final fanta and water amounts in the bottle.

11 litres

11 litres

22 litres

22 litres

23 litres

23 litres

19 litres

19 litres

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["0","40","60","80","100"]
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