Aptitude - Alligation or Mixture - Discussion

Discussion Forum : Alligation or Mixture - General Questions (Q.No. 12)
12.
In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?
3 : 2
3 : 4
3 : 5
4 : 5
Answer: Option
Explanation:

S.P. of 1 kg of the mixture = Rs. 68.20, Gain = 10%.

C.P. of 1 kg of the mixture = Rs. 100 x 68.20 = Rs. 62.
110

By the rule of alligation, we have:

Cost of 1 kg tea of 1st kind. Cost of 1 kg tea of 2nd kind.
Rs. 60 Mean Price
Rs. 62
Rs. 65
3 2

Required ratio = 3 : 2.

Discussion:
22 comments Page 3 of 3.

Arpit jain said:   1 decade ago
Ratio is obtained by difference between them...
62-60 = 2
65-62 = 3

Sumeet said:   1 decade ago
How the required ratio is obtained?


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