Aptitude - Chain Rule - Discussion
Discussion Forum : Chain Rule - General Questions (Q.No. 8)
8.
In a dairy farm, 40 cows eat 40 bags of husk in 40 days. In how many days one cow will eat one bag of husk?
Answer: Option
Explanation:
Let the required number of days be x.
Less cows, More days (Indirect Proportion)
Less bags, Less days (Direct Proportion)
| Cows | 1 | : | 40 |  |
:: 40 : x |
| Bags | 40 | : | 1 |
1 x 40 x x = 40 x 1 x 40
x = 40.
Discussion:
39 comments Page 4 of 4.
Sowmiya said:
8 years ago
Thanks for the explanation @Saranya.
Ruba said:
7 years ago
How to find direct & indirect proportion? Please tell me.
(1)
Ayushman gautam said:
7 years ago
How it is possible for that 40 cows to take time 40 days, 1 cow is also 40 days?
So, according to me, it is option B.
So, according to me, it is option B.
(2)
Anomie said:
6 years ago
EASIEST METHOD:
First, we fix the data 40 days:
40 cows ----> 40 bags
1 cow -----> ? bags
? = 40 ÷ 40
=1 bag.
40 days ----> 1 bag
1 day -----> ? bag
? = 1 ÷ 40.
= 1/40 bag.
1 day ------> 1/40 bag.
? day -------> 1 bag.
? = 1 ÷ 1/40.
= 40 days.
First, we fix the data 40 days:
40 cows ----> 40 bags
1 cow -----> ? bags
? = 40 ÷ 40
=1 bag.
40 days ----> 1 bag
1 day -----> ? bag
? = 1 ÷ 40.
= 1/40 bag.
1 day ------> 1/40 bag.
? day -------> 1 bag.
? = 1 ÷ 1/40.
= 40 days.
(9)
Ashwani said:
6 years ago
M1D1 / W1 = M2D2 / W2.
(40cow x 40 days )/ 40 bag = (1Cow x D days)/ 1 bag.
(40 x 40)/40 =( 1 x D)/1.
40 = D.
(40cow x 40 days )/ 40 bag = (1Cow x D days)/ 1 bag.
(40 x 40)/40 =( 1 x D)/1.
40 = D.
(15)
Aadarsh said:
5 years ago
Nice Explanation. Thanks @Ashwini.
(3)
Bharathi said:
4 years ago
Still, I can't understand this. Anyone explain me.
(1)
Trushi said:
4 years ago
I am not getting this. Please, anyone, help me to get this.
(5)
Tanishka bansla said:
2 years ago
@All.
In this type of question, we remember that work done always comes in denominator.
So, 40*40÷40= 1*D÷1,
Gives 40 as answer.
In this type of question, we remember that work done always comes in denominator.
So, 40*40÷40= 1*D÷1,
Gives 40 as answer.
(6)
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