Answer:
24
Step-by-step explanation:
there are 6 seats and 3 boys, 3 girls.
First seat can be given to either boy or a girl.
So there are two ways.
If a boy is selected say, then he has to occupy 3rd and 5th only.
There are 2 ways
Now available positions are 2nd, 4th and 6th, in this girls can be arranged in 3! ways = 6
So total number of ways =
D.
Determine the groups: -
Factor out terms:
The -2 was factored out in the second group to ensure that both groups had
(x-12).
yessir
24,12
suppose,
x+y=36
x=2y
2y+y=36
y=12
x=24
Answer: 8r+5t
8t + 6r - 3t + 2r
8t-3t= 5t
6r+2r=8r
= 8r+5t