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Choose the odd one out: 121, 144, 169, 196, 200

Competition practiceReasoning & Mental Ability

A144
B169
C196
D200

Step-by-Step Solution

121=

1 1^{2}, 144 = 1 2^{2}, 169 = 1 3^{2}, 196 = 1 4^{2}

are perfect squares, but 200 is not a perfect square.

Answer: D) 200

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