Aptitude - Alligation or Mixture - Discussion
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Read more:"The secret to creativity is knowing how to hide your sources."
- Albert Einstein
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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?
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| [A]. |
3 : 7 | [B]. |
5 : 7 | | [C]. |
7 : 3 | [D]. |
7 : 5 |
Answer: Option E
Explanation:
By the rule of alligation:
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Cost of 1 kg pulses of 1st kind
Cost of 1 kg pulses of 2nd kind
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| Rs. 15 |
Mean Price
Rs. 16.50
| Rs. 20 |
| 3.50 |
1.50 |
 Required rate = 3.50 : 1.50 = 7 : 3.
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Ladli said:
(Wed, Jun 8, 2011 07:23:35 AM)
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| How you got 3.50 and 1.50? Please tell me. |
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Manasa said:
(Fri, Jun 10, 2011 08:12:29 AM)
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@ladli
(20-16.50):(16.50-15)=3.50:1.50=7:3 |
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Sheetal said:
(Fri, Aug 19, 2011 08:22:45 PM)
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If cost of 1kg pulses of 2'nd kind is=15
& 1'st kind is=20...
then what will be the ans?
Please tell me...
It's depends upon the mean price? |
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Viswajit said:
(Sat, Sep 10, 2011 07:23:53 PM)
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| Thank you manasa. |
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San said:
(Mon, Sep 19, 2011 06:16:16 AM)
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If we swap 15 and 20 places.
Why can't it be 3:7 ? is there any rule? |
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Sathish said:
(Wed, Jan 4, 2012 06:48:57 PM)
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| How we get 3.50:1.50=7:3? |
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Shashank said:
(Wed, Jan 18, 2012 03:55:46 AM)
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| 350/100:150/100=35:15=7:3 |
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Prakash said:
(Fri, Feb 10, 2012 12:56:35 PM)
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Its better to follow simple method boss.
Lets assume that price of A be 150 and B is 200.
Mixture to sell at 165.
Cheaper grocery profit = 165-150 = 15.
Dearer grocery loss = 200-165=35.
Ratios to sell at 165 is.
35
---- = 7:3
15 |
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