150
175
225
250
Answer is Right!
Answer is Wrong!
The answer is 150.
The sequence is a combination of two sequences: 90, 180, 12, 50, 100, 200, … and 3, 50, 4, 25, 2, 6, 30, …
The first sequence is generated by multiplying each term by 2 and then subtracting 30. The second sequence is generated by multiplying each term by 5 and then subtracting 1.
The missing term is the 10th term in the first sequence, which is 150.