Question

if 30 cows can graze a field in 15 days, how many cows will graze the same field in 10 days

Answer 1

Answer:

inverse proportion

45 days

Step-by-step explanation:

30 cows graze a field in 15 days

let the cows be x that graze in 10 days

inverse proportion =x1 × y1 = x2 × y2

x1= 30 cows

y1= 15 days

x2=x..

y2 = 10days

30*15=10*x

x=30*15/10

x=45

45 cows would graze the same field

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Answer 2

solution;

let , the needed cows be x

cows                                     days

30                                          15

x                                            10

it is in in direct varation ,

x/30=15/10

10x=30*15

x=450/10

x=45

thus ,45 cows is needed