Question 1 of 40

Look at the pattern in figure below.
(a) Complete the table below by finding the totals number of tiles for pattern 4. \begin{array}{|c|c|c | c |} \hline \mbox{Pattern No.} & \mbox{No. of unshaded}
\mbox{tiles} & \mbox{No. of shaded tiles} & \mbox{Total No. of tiles} \\ \hline 1 & 0 & 1 & 1 \\ \hline 2 & 1 & 2 & 3 \\ \hline 3 & 3 & 3 & 6 \\ \hline 4 & 6 & 4 & ? \\ \hline \end{array}
(b) How many unshaed tiles will there be in pattern number 15?

Question Image of Look at the pattern in figure below. <br>(a) Complete the table below by finding the totals number of tiles for pattern 4. \begin{array}{|c|c|c | c |} \hline \mbox{Pattern No.} & \mbox{No. of unshaded} <br> \mbox{tiles}  & \mbox{No. of shaded tiles} & \mbox{Total No. of tiles} \\ \hline 1 & 0 & 1 & 1 \\ \hline 2 & 1 & 2 & 3 \\ \hline  3 & 3 & 3 & 6 \\ \hline 4 & 6 & 4 & ? \\ \hline  \end{array} <br>(b) How many unshaed tiles will there be in pattern number 15?.
A
(a)10
(b) 105
B
(a)15
(b) 110
C
(a)20
(b) 155
D
(a)25
(b) 120
E
None of the above