Question

If 8 cows can give 80 litres of milk in 8 days the 1 cow can give 1 litre of milk in how many days at same rate

Answer 1

Answer:

8 cows give 8 litres of milk in 8 days.

Thus 1 cow give 10 litres of milk in 8 days.

1 cow give 1 litre of milk in 19.2 hours.

So, 1 cow give 1 litre of milk in 0.05 days. 1/19.2=0.05 days.

Answer 2

Given,

The volume of milk that eight cows give in eight days = 80$l$

To find,

The number of days in which a cow can produce 1 liter of milk.

Solution,

Given that eight cows can produce 80 liters of milk in 8 days.

∴ The number of liters of milk one cow can produce in 8 days = $\frac{total volume of milk}{number of cows}$

⇒$\frac{80}{8}$

⇒$10 l$

Thus one cow can produce 10 liters of milk in 8 days.

Let the number of days required to produce 1 liter of milk be $x$

∴ $10$ liters → 8 days

$1$ liter → $x$ days

On cross multiplication,

$x = \frac{(8)(1)}{10}$

⇒$0.8 days$

⇒0.8×24 hours

⇒19.2 hours.

Henceforth, a cow can produce a liter of milk in 19.2 hours.