Answer:
In the third round, total family members contacted is 8.
Step-by-step explanation:
Let us assume that Mrs Rayne contacts two members in her family say A and B
or, Total new members contacted in First Round = A and B (2 members)
Now, in second Round, A contacts two members say H and G
and B contacts L and M
So, Total new members contacted in second round = H, G ,L and M (4)
Now, in third round each of the members H, G , L and M contact two people each say
<u>H contacts W, X</u>
<u>G contacts Y, Z</u>
<u>L contacts P, Q</u>
and <u>M contacts R and S</u>
So, Total new members contacted in second round = W, X, Y, Z , P, Q R and S
Hence, in the third round, total family members contacted is 8.
