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Official PYQ · 2022

GATE EC 2022 Set 1 Q10 — General Aptitude

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Consider the following square with the four corners and the center marked as P, Q, R, S\text{P, Q, R, S} and T\text{T} respectively.

Let X, Y\text{X, Y} and Z\text{Z} represent the following operations:

X:\text{X:} rotation of the square by 180180 degree with respect to the S – Q\text{S – Q} axis.

Y:\text{Y:} rotation of the square by 180180 degree with respect to the P – R\text{P – R} axis.

Z:\text{Z:} rotation of the square by 9090 degree clockwise with respect to the axis perpendicular, going into the screen and passing through the point T.\text{T}.

Consider the following three distinct sequences of operation (which are applied in the left to right order).

  1. XYZZ\text{XYZZ}
  2. XY\text{XY}
  3. ZZZZ\text{ZZZZ}

Which one of the following statements is correct as per the information provided above?

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Answer: B

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