Question

A farmer has determined that he has enough hay for 4 cows for 3 weeks. If the farmer suddenly obtains 2 more cows how long can he expect the hay to last?

Answer 1

Answer:

2 weeks

Step-by-step explanation:

h=amount of hay he has

4 (cows)·3 (weeks)=h

If we add 2 more cows, and new number of weeks =w, then

6 (cows)·w=h

Therefore,

4·3=6w

12=6w

w=2

Answer 2

He can expect that the hay to last 4.5 weeks.

Step-by-step explanation:

Since we have given that

Number of cows = 4

Number of weeks = 3

If the number of cows are 2 more cows i.e. 4+2 =6 cows

So, we need to find the number of weeks day 'x'.

According to question, we get that

$\dfrac{4}{3}=\dfrac{6}{x}\\\\4x=3\times 6\\\\4x=18\\\\x=\dfrac{18}{4}=4.5\ weeks$

Hence, he can expect that the hay to last 4.5 weeks.

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