A movie theatre has eleven rows of seats. The rows are numbered from 1 to 11 . Oddnumbered rows have 15 seats and even-numbered rows have 16 seats. How many seats are there in the theatre?
(A) 176
(B) 186
(C) 165
(D) 170
(E) 171
There are six odd-numbered rows (rows $1,3,5,7,9,11$ ).

These rows have $6 \times 15=90$ seats in total.

There are five even-numbered rows (rows $2,4,6,8,10$ ).

These rows have $5 \times 16=80$ seats in total.

Therefore, there are $90+80=170$ seats in total in the theatre.

ANSWER: (D)