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:
44 comments Page 3 of 5.

Marvi said:   7 years ago
How to calculate 1st nd 2nd ratio?

Nafiul said:   6 years ago
Ql=Quality of Lower.
Qh=Quality of Higher(Let x).
Pl=Profit of Lower.
Ph=Profit of Higher.

Ql/Qh=(Ph - M)/(M - Pl).
(1000-x)/x=(18-14)/(14-8).
(1000-x)/x=4/6.
(1000-x)/x=2/3.
2x=3000-3x.
5x=3000.
x=600.

Ajith kumar said:   1 decade ago
Thank you, I was also suffering with same doubt. It helped me a lot.

Gokul Ramakrishnan said:   4 years ago
Thank you it helped me a lot.

Priya said:   1 decade ago
@target

18-14=4
and
8-14=6

hope it helps u..

Gokul said:   1 decade ago
If 18-14 = 4 and 14-8 = 6.

Then the ratio must be 3:2 for a:b how come it is 2:3?

Vasumaila said:   1 decade ago
The ratio of 1st & 2nd = 4:6=2:3
so its become 2+3=5
so we calculate 3/5*1000=600

I hope U understand

Simit said:   1 decade ago
Let us consider 2 part X(18%)&Y(8%).

Now 1000-x = y.

1000*1.14 = x*1.18+y*1.08.

1000*1.14 = x*1.18+(1000-x)1.08.

1000*0.06 = x*0.1.

x = 600.

Kanna said:   1 decade ago
How 3/5 is coming ?

Rajesh said:   1 decade ago
Yes its suggest how you found 3/5?


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