Question

if 12 oxen or 15 cows can graze a field in 66 days how long would 24 oxen and 3 cows take to Graze the same field​

Answer 1

12oxe=15cow
Multiplying by 2 we get
24oxe=30cow
Then we have to find 30cow+3cow
33cow’s time to graze the field
15cow=66days
So 33cow will be

M1D1=M2D2

15x66=33xD2
D2=15x66/33
D2=30 days

Answer 2

Answer:

12oxe=15cows

multiplying by 2 we get

24oxe=30cows

33 cows graze the field in

15cows=66days

so 33 cows will be

M1×M1=D2×D2

15×66/33=30 days