InfyTQ Allegation and Mixture Quiz 3

By the allegation rule,
Cost of first variety         Cost of second variety
30                                                      75

Mean= 45

75 - 45 = 30                            45 – 30 = 15

Ratio = 30: 15 = 6: 3

= 2:1

8% --------------------18%

Using the rule of allegation, we get
Price of low quality coffee             Price of high quality coffee
70                                                                         120

Mean Price= 85

120 - 85 = 35                                               85 – 70 = 15
The needed ratio = 35 : 15
= 7: 3

Using the use of allegations, we get,
Cost of 1 kg of salt                Cost of second kind of salt
8.50                                                       11.60

Cost of 1 kg of mixture
9

11.60 – 9 = 2.60                        9-8.50= 0.50

Weight of first type of salt: weight of second type of salt
weight of first kind of salt 60x = 26: 5
Weight of first type of salt = (60 x 5)/26= 11.53 kg

Profit from part 1 of rice Profit from part 2 of rice
10 16

Overall Profit
14%

16-14 =2 14-10 = 4
Quantity of part 1: Quantity of part 2 = 2:4 = 1:2
Total weight of wheat = 1500 kg
Quantity of the second part = quantity sold at 12% profit
1500 x 2/3 = 1000

for 1 kg zinc is 25% i.e 250 grams

and in that mixture copper is 75% i.e 750 grams

and 750 grams is 10% of 7.5 kgs

So that amount of iron need to be added is

6.5 kg

because 6.5 kg iron + 250 gm zinc + 750 gm copper = 7.5 kg mixture

Video solution:

Applying the rule of allegation, we get
Cost of 1 kg of first type of wheat           Cost of 1 kg of second type of wheat
20                                                                                               14

Mean price= 16.50

16.50-14 = 2.50                                                               20 - 16.50 = 3.50

Needed ratio = 3.50: 2.50
= 7: 5

Video solution:

According to the rule of allegations, we get
Tea A                                  Tea B
CP = 1050                    CP = 1230

Mean Price= 1100

1200 – 1100= 100         1100 – 1050 = 50
Ratio = 100: 50
= 2: 1

Using the rule of allegation
Beans                                             Lentils
25                                                      18

Mean Price= 19.50

25- 19.50 = 5.50                     19.50-18 = 1.50

Required Ratio = 5.50: 1.50
= 11: 3