Aptitude - Chain Rule - Discussion

Discussion Forum : Chain Rule - General Questions (Q.No. 4)
4.
A fort had provision of food for 150 men for 45 days. After 10 days, 25 men left the fort. The number of days for which the remaining food will last, is:
29 1
5
37 1
4
42
54
Answer: Option
Explanation:

After 10 days : 150 men had food for 35 days.

Suppose 125 men had food for x days.

Now, Less men, More days (Indirect Proportion)

125 : 150 :: 35 : x       125 x x = 150 x 35

x = 150 x 35
125

x = 42.

Discussion:
82 comments Page 4 of 9.

Mugdha said:   8 years ago
My que is that if x men consume x kg of food in x days, then why men will consume why kg of food in ? how many days?

Sameenamhd said:   8 years ago
If 9 mens are at work and they food for only 26days. If 4 people are joining the work then in how many days the food will complete? Can anyone answer this?

Divya G said:   8 years ago
Can anyone help me to give clear answer for this?

Niranjana said:   8 years ago
@Vikas.

Could you explain this sum for me, please. In a fort, there was sufficient food for 24 weeks for 200 soldiers. 80 more soldiers join the group at the end of one week and quantity of food served to each soldier was reduced from 900 gm to 750 gm. For how many days the rest food would last now?

Manisha sinha said:   8 years ago
@Pushpak.

The answer is 1430.

Star said:   8 years ago
@Pushpak.

I guess 1430 men came after 17 days,
2200*33 = (2200+x) * 20.

Star said:   8 years ago
What if the question had been how many more days the food lasts? Then would the answer be 42-35 = 7 more days.

PUSPAK said:   8 years ago
In a camp of 2200 men their stock of food for 50 days. Some men came after 17 days and remaining food lasted for 20 days more. How many men came after 17 days?

Please solve this.

Lekshmi said:   8 years ago
Great explanation, Thanks @Vikas.

Siddharth said:   8 years ago
@Liza.

1 student has provision for 150 x 45 days.
125 students have provision for 150 x 45 / 125 = 54 days.


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