44 cows can graze a field in 9 days. How many less/more cows will graze the same field in 12 days?
Solution:
No. of Cows No. of Days required to graze the field
44 9 days
x = ? 12 Days
The less the number of cows means that it will take more days to graze. Hence it is an inverse variation. Therefore the number of cows will be:
x = 44 × (9/12)
x = 44 × (3/4)
x = 33
Hence 33 cows will graze the field in 12 days.
✦ Try This: 48 cows can graze a field in 8 days. How many less/more cows will graze the same field in 6 days?
No. of Cows No. of Days required to graze the field
48 8 days
x = ? 6 days
The less the number of cows means that it will take more days to graze. Therefore the number of cows will be:
x = 48 × (8/6)
x = 8 × (8)
x = 64
Hence 64 cows will graze the field in 6 days which means 16 more cows should join to graze the field in six days.
☛ Also Check: NCERT Solutions for Class 8 Maths Chapter 13
NCERT Exemplar Class 8 Maths Chapter 10 Problem 87
44 cows can graze a field in 9 days. How many less/more cows will graze the same field in 12 days
Summary:
44 cows can graze a field in 9 days. 11 less cows will graze the same field in 12 days
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