A farmer has enough food to feed 20 animals
in his cattle for 6 days. How long would the
food last if there were 30 animals in his cattle?
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Answer:
4 days
Step-By-Step Explanation:
If the number of animals increases, then it will take fewer days to last.
Then the two quantities are in inverse proportions.
Let the required number of days be p.
Where,
and (let)
=> 20 × 6 = 30 × p
=> 120 = 30p
=> p = 120/30
=> p = 4
Hence the required number of days = 4.
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