Aptitude - Chain Rule - Discussion
Discussion Forum : Chain Rule - General Questions (Q.No. 3)
3.
Running at the same constant rate, 6 identical machines can produce a total of 270 bottles per minute. At this rate, how many bottles could 10 such machines produce in 4 minutes?
Answer: Option
Explanation:
Let the required number of bottles be x.
More machines, More bottles (Direct Proportion)
More minutes, More bottles (Direct Proportion)
| Machines | 6 | : | 10 |  |
:: 270 : x |
| Time (in minutes) | 1 | : | 4 |
6 x 1 x x = 10 x 4 x 270
 x = |
(10 x 4 x 270) |
| (6) |
x = 1800.
Discussion:
29 comments Page 2 of 3.
Lucas, DSM said:
9 years ago
When Direct Proportion: M1*D2*H1 = M2*D2*H2. I cannot understand the rule for calculating direct proportion amount especially using the formula. Please explain and provide worked example.
(1)
Jay Jethava said:
9 years ago
6 machines gives 270 bottles in 1 minute.
Therefore 1 machine in 1 minute = 270/6 = 90/2 = 45.
Now 10 machines in 4 minutes = 45 * 10 * 2 = 1800.
Therefore 1 machine in 1 minute = 270/6 = 90/2 = 45.
Now 10 machines in 4 minutes = 45 * 10 * 2 = 1800.
Ravi Kumar said:
1 decade ago
Simple:
When Indirect proportion: M1*D1*H1 = M2*D2*H2.
When Direct Proportion: M1*D2*H1 = M2*D2*H2.
When Indirect proportion: M1*D1*H1 = M2*D2*H2.
When Direct Proportion: M1*D2*H1 = M2*D2*H2.
Karthikeyan j said:
1 decade ago
6*1*270 = 10*4*x.
6*270 = 40*x.
x = 40/6*270.
x = 1800.
6*270 = 40*x.
x = 40/6*270.
x = 1800.
Buddhika said:
1 decade ago
Machine. Minutes. Bottles.
1. 1. 45.
6. 1. 270.
10. 1. 450.
10. 4. 1800.
1. 1. 45.
6. 1. 270.
10. 1. 450.
10. 4. 1800.
Sunraj said:
1 decade ago
6 M/C = 270 Bottles/min.
1 M/C = 270/6 Bottles/min = 45 Bottles/min.
10 M/C = 45*10 = 450 Bottles/min.
So, in 4 min,
Number of Bottles = 450*4 = -1800.
1 M/C = 270/6 Bottles/min = 45 Bottles/min.
10 M/C = 45*10 = 450 Bottles/min.
So, in 4 min,
Number of Bottles = 450*4 = -1800.
Abhishek said:
1 decade ago
Hi all,
It's a technique to solve these type of questions, gre technique.
6 10 16.
45 45 45.
270 450 total.
450 in a min so in 4min 1800.
It's a technique to solve these type of questions, gre technique.
6 10 16.
45 45 45.
270 450 total.
450 in a min so in 4min 1800.
Bharath said:
1 decade ago
6 machines produces 270 bottles in 1 minute so first we check how many bottles 1 machine can produce in 1 minute.
i.e. 270/6=45 bottles in 1 minute.
1 machine can produce 45 bottles in 1 minute.
Now we will check how many bottles can be produced in 4 mints.
i.e. 45*4=180 bottles.
1 machine can produce 180 bottles in 4 minutes 10 machines can produce 1800 bottles in 10 minutes.
i.e. 270/6=45 bottles in 1 minute.
1 machine can produce 45 bottles in 1 minute.
Now we will check how many bottles can be produced in 4 mints.
i.e. 45*4=180 bottles.
1 machine can produce 180 bottles in 4 minutes 10 machines can produce 1800 bottles in 10 minutes.
Aun said:
1 decade ago
How we can multiple 10*4*270 ?
Javeed said:
1 decade ago
@ravi Teja : Super Explanation
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