Aptitude - Alligation or Mixture - Discussion

Discussion Forum : Alligation or Mixture - General Questions (Q.No. 15)
15.
A merchant has 1000 kg of sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. The quantity sold at 18% profit is:
400 kg
560 kg
600 kg
640 kg
Answer: Option
Explanation:

By the rule of alligation, we have:

Profit on 1st part Profit on 2nd part
8% Mean Profit
14%
18%
4 6

Ration of 1st and 2nd parts = 4 : 6 = 2 : 3

Quantity of 2nd kind = 3 x 1000 kg = 600 kg.
5

Discussion:
45 comments Page 1 of 5.

MANISH said:   4 years ago
14-8 = 6.
18-14 = 4.

Ratio of 1st = 2:3.

Now;
2+3 = 5,
5 units = 1000,
1 units = 200, then
3 units = 3*200 = 600.
(5)

Mohan said:   8 years ago
Let x part is sell with 8% profit
And the rest 1000-x with 18%
And total profit is 14%.

Then we can write;

(X * 8) (1000-x)*18 (1000 * 14)
---------------- + ----------- = ------------------
100 100 100

Here all 100 in the denominator is cancel out;
And we get,
8x + 1000*18 - 18x = 1000*14
-10x = 14000 - 18000
-10x = -4000
X = 400.

The quantity sold at 18% profit is:

1000 - x = 1000 - 400 = 600 Ans.

I HOPE IT WILL HELP TO MAKE WITH BASIC WITHOUT ALLIGATION METHOD.

THANK YOU.
(4)

Andy said:   6 years ago
8x + 18(1000-x)/x+1000-x =14.
8x+18000-18x = 14000,
Solving x you get 400,
1000 - 400 = 600.
(2)

Saranya Kumar said:   9 years ago
118x + 108(1000 - x) = 114000.
59x + 54(1000 - x) = 57000.
5x = 3000.
x = 600.
(1)

Krishna Rathi said:   10 years ago
Any alternative way to solving this question?
(1)

Ananda said:   8 years ago
Clear explanations. Thanks for your great help.
(1)

R.Jaswanth Raju said:   8 years ago
@Aditya.

Just like the above question we can apply same rule and method to solve your question.

ANSWER:

He sold 30kg sugar for 18% profit.
After solving we get 4:6=>2:3
3/5*50 = 30.
Here 30 indicates kgs.

Pooja said:   9 years ago
How to solve if the merchant is in the loss for the 2nd time?

Gobi said:   9 years ago
Why in this place taking selling price?

Ritija said:   9 years ago
Why we calculate the second part only?

Please tell me.


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