44 cows can graze a field in 9 days. How many less/more cows will graze the…
2017
44 cows can graze a field in 9 days. How many less/more cows will graze the same field in 12 days?
- A.
11 cows less
11 गायें कम
- B.
11 cows more
11 गायें ज्यादा
- C.
15 cows less
15 गायें कम
- D.
15 cows more
15 गायें ज्यादा
Attempted by 5 students.
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Correct answer: A
First, calculate the total work required to graze the field using cow-days. 44 cows × 9 days = 396 cow-days. Next, determine how many cows are needed to complete the same work in 12 days by dividing total cow-days by new days: 396 ÷ 12 = 33 cows. Finally, compare the new number of cows to the original count: 44 - 33 = 11. Therefore, 11 fewer cows are needed.