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One part of each term never changes. Identify the part that does and complete the run.
M&, O&, Q&, S&, ?

  • A.U%
  • B.T&
  • C.W&
  • D.U&

Answer: C

Correct answer: U&

The symbol never changes, so the whole of the pattern is in the letters, which advance two places at a time: M, O, Q, S. The next is U, giving U&. A constant element in a compound series is there to distract; identifying it as constant early removes half the problem. T is the immediately following letter and would fit a single step. A constant element in a compound term carries no information and is placed there to distract, so identifying it as constant is the first move.

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