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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 ?

  • 34 days
  • 40 days
  • 46 days
  • 50 days

Answer: Option B

Explanation:

Less Cows, More days (Indirect Proportion)
Less bags, Less days (Direct Proportion)

[Cows140Bags401]::40:x=>x∗40∗1=40∗1∗40=>x=40


Similar Questions :

1. If the price of 23 toys is 276, then what will the price of 12 toys ?

  • 144
  • 148
  • 156
  • 186

Answer: Option A

Explanation:

Less toys, Less Price (Direct Proportion)
So, let the price be Rs. x
then,
23:12::276:x=>x=276∗1223=>x=144



So price of 12 toys will be Rs. 144

2. In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with the remaining meal ?

  • 38 men
  • 32 men
  • 34 men
  • 30 men

Answer: Option D

Explanation:

There is meal for 200 children. 150 children have taken the meal.
Remaining meal is to be catered to 50 children.
Now, 200 children = 120 men

So, 50 Children = 120/200 * 50 = 30 men

3. An industrial loom weaves 0.128 metres of cloth every second. Approximately, how many seconds will it take for the loom to weave 25 metre of cloth ?

  • 194 seconds
  • 195 seconds
  • 196 seconds
  • 197 seconds

Answer: Option B

Explanation:

Let the time required by x seconds.
Then, More cloth means More time (Direct Proportion)
So,
0.128:1::25:x=>x=25∗10.128=>x=195.31



So time will be approx 195 seconds

4. 10 men, working 6 hours a day can complete a work in 18 days. How many hours a day must 15 men work to complete the work in 12 days ?

  • 4 hours a day
  • 5 hours a day
  • 6 hours a day
  • 7 hours a day

Answer: Option C

Explanation:


More Men, Less Hours {Indirect Proportion}
Less Days, More Hours {Indirect Proportion}
[Men1510Days1218]::6:x=>x∗15∗12=10∗18∗6=>x=10∗18∗615∗12=>x=6

5. 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 ?

  • 34 days
  • 40 days
  • 46 days
  • 50 days

Answer: Option B

Explanation:

Less Cows, More days (Indirect Proportion)
Less bags, Less days (Direct Proportion)

[Cows140Bags401]::40:x=>x∗40∗1=40∗1∗40=>x=40


Read more from - Chain Rule Questions Answers
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