$32$ cows can graze a field in $24$ days. In how many days will $48$ cows graze the same field?

$32$ cows can graze a field in $24$ days. In how many days will $48$ cows graze the same field?
  1. $12$
  2. $14$
  3. $16$
  4. $18$

Solution

$32 \times 24 = 48 \times d \Rightarrow d = \dfrac{768}{48} = 16$ days.

Asked in: IMO

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