Three hens can lay 3 eggs in 3 days.In how many days can 7 hens lay 7 eggs?
2 answers:
Answer:
3 days
Step-by-step explanation:
Three hens lay 3 eggs in 3 days
We have to find the days in which 7 hens lay 7 eggs
Hen/egg=
Hen/egg=1
Using unitary method
1 hen lays 1 egg in 3 days
1 hen lays in 1 day =eggs
7 hens lay 7/3 eggs in 1 day
7 hens lay 1 egg=days
7 hens lay 7 eggs=
7 hens lay 7 eggs=3 days
Hence, 7 hens lay 7 eggs in 3 days
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<u>Answer:</u>
The probability of rolling an even number first and an odd number second is
<u>Solution: </u>
As two cubes are 6 sided, the total number of possibilities are
Now in those possibilities the first number will be even and the second number will be odd. If we check the table, such pairs are,
(2,1), (2,3), (2,5), (4,1), (4,3), (4,5), (6,1), (6,3), (6,5)
So, we can see we have total 9 set with the combination of first number even and second number odd. So, the probability of rolling with this combination will be