
Step-by-step explanation:
Probability=
Probability for a randomly chosen girl to be senior=
Probability for a randomly chosen girl to be senior=
Probability for a randomly chosen boy to be senior=
Probability for a randomly chosen girl to be senior=
For two independent events,
Probability for both event 1 and event 2 to take place=
Since choosing boys and girls is independent,
Probability for both boy an girl chosen to be senior=
Probability for both boy and girl chosen to be senior=
So,required probability is 
Answer:
of garden.
Step-by-step explanation:
Given: The area covered by
of a packet of flower seeds=
of a garden.
The area covered in 1 packet=
⇒The area covered in 1 packet=
of garden.
Thus, the entire packet of seeds would cover
of garden.
Answer:
the answer is false but when it is divided by a negative number then you flip the inequality sign