Question

Answer this to be brainlieast

Answer 1

Hi there !
Here's the answer :

From P to Q:
Select first step which can be either 1, 2 or 3.
P1…………Q
P2…………Q
P3…………Q

now lets see individually,
¶ P1…………Q(1 is connected to 4 & 5)
° P14……Q
° P15Q(5 is directly connected to Q)
° P1435Q
•°• 3 ways are possible from P1………Q

¶ P2…………Q(2 is connected to 4 and 5)
° P24Q
° P2435Q
° P25Q

•°• 3 ways are possible from P2………Q

¶ P3……Q
° P35Q

•°• 1 way is possible from P3………Q

Adding all, total ways = 7

:)
Hope it helps