Question

10. if 15 oxen or 20 cows can eat the grass of a field in 80 days, then in how many days will 6 oxen and 2 cows eat the same grass?

Answer 1

Given that '15 oxen or 20 cows' can eat the grass of a field in 80 days.

⇒ Amount of grass of the field eaten by 15 oxen = Amount of grass of the field eaten by 20 cows

⇒ Amount of grass of the field eaten by 3 oxen = Amount of grass of the field eaten by 4 cows

⇒ Amount of grass of the field eaten by 6 oxen = Amount of grass of the field eaten by 8 cows

Thus,

⇒ Amount of grass of the field eaten by '6 oxen and 2 cows'

⇒ Amount of grass of the field eaten by '8 cows and 2 cows'

⇒ Amount of grass of the field eaten by '10 cows'

→ No. of days in which 20 cows eat the grass of the field = 80 days

→ No. of days in which 20/2 = 10 cows eat the grass of the field = 80 × 2 = 160 days

Thus, 6 oxen and 2 cows eat the same amount of grass of the field in 160 days.

Answer 2

Answer:

Step-by-step explanation:

Given:-

15 oxen or 20 Cows can eat the grass of a field in 80 Days.

=> 15 Oxen = 20 Cows.

=> 1 Oxen = 20/ 15 Cows.

Now, 6 Oxen;

=> 6 Oxen = 20/15 * 6

=> 6 Oxen = 8 Cows.

To Find:-

In how many days will 6 oxen and 2 cows eat the same grass?

6 Oxen + 2 Cows = ?

=> 8 Cows + 2 Cows =?

=> 10 Cows = ?

Given that,

20 Cows grase the Field in 80 days.

=> 10 Cows grase the Field = 2 × 80

=> 10 Cows grase the Field = 160 Days.

Hence,

6 oxen and 2 cows eat the same grass in 160 Days.