Aptitude - Alligation or Mixture - Discussion

Discussion Forum : Alligation or Mixture - General Questions (Q.No. 11)
11.
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.
1 : 3
2 : 3
3 : 4
4 : 5
Answer: Option
Explanation:

By the rule of alligation:

Cost of 1 kg of 1st kind Cost of 1 kg of 2nd kind
720 p Mean Price
630 p
570 p
60 90

Required ratio = 60 : 90 = 2 : 3.

Discussion:
30 comments Page 3 of 3.

Harini said:   3 years ago
How that 7.20 turned into 720p? Can you please explain?

Deepti said:   9 years ago
Thank you, your explanation was helpful.

Sai said:   9 years ago
Thank you all for the explanation.

Pravat sahu said:   8 years ago
How 630 came? Please explain me.

Sony Tiwary said:   5 years ago
Yes, the correct answer is 3:2.
(4)

Shree said:   8 years ago
Thanks for the explanations.

Ajay said:   1 decade ago
How 60 & 90 came here?

Bargavi said:   5 years ago
Correct, Thanks @Pushpa.

Ravi said:   7 years ago
How 90:30 come?

Hari said:   1 decade ago
How 630 came?


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