A sequence of numbers is such that a1 = 11, a2 =16, and each subsequent an = an-2 + 9. Which of the following numbers is a member of the sequence?
Choose the correct choice from the following options.
A) 216  B) 246  C) 289  D) 299  E) 368
each odd term(1st , 3rd, 5th,...) of the sequence is given by 11 + 9*(something)   each even term(2nd, 4th, 6th...) of the sequence is given by 16 + 9*(something)   So if you subtract the numbers by 11 or 16 then it should be divisible by 9   216-11(=205) or 216-16(=200) are not divisible by 9   246-11(=235) or 246-16(= 240) are not divisible by 9   289-11(=278) or 289-16(=273) are not divisible by 9   299-11(=288) is divisible by 9ANSWER, 299-16(=283) are not divisible by 9   368-11(=357) or 368-16(=352) are not divisible by 9   So, Answer is 299
<result>D</result>
A sequence of numbers is such that a1 = 11, a2 =16, and each subsequent an = an-2 + 9. Which of the following numbers is a member of the sequence?