How many numbers lie between the square of 12 and 13?

Answer: 24 numbers

Let us consider the square of the given two numbers

122 = 12 × 12

122 = 144

132 = 13 × 13

132 = 169

Numbers lies between 169 and 144 are

145,146,147,148,149, 150,151,152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168.

∴ Total 24 numbers lies between 144 and 169.

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