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Answers
Answer: You can't shorten the process of egg-hatching by increasing the number of chickens. Therefore, 30 hens will also need 18 days to hatch their eggs.
Answer:
9 days
Step-by-step explanation:
No of eggs to hatch = 30
In fist case no of hens are less than number of eggs to be hatched.
One hen can hatch one egg at a time.
Thus 20 eggs willbe hatched 1st, and then the remaining 10 eggs will be hatched.
Number of days required for every egg to hatched being same, 2 cyles of hatching is required in 1st place.
Thus actual number of days to hatch an egg = 18 / 2 = 9 days.
In 2nd case, number of eggs = 30
Number of available hens = 30
Both are same. Thus all the 30 eggs can be hatched simultaniously.
Thus it will take 9 days to hatch 30 eggs with 30 hens.