Question 141

A three-digit perfect square is such that, if it is viewed upside down, the number seen is also a perfect square. What is the number?

[Hint: The digits 1, 0 and 8 stay the same when viewed upside down, whereas 9 becomes 6 and 6 becomes 9].

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Solution

Three-digit perfect squares are 196 and 961, which looks same when viewed upside down.

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Question 141 A three-digit perfect square is such that, if it is viewed upside down, the number seen is also a perfect square. What is the number? [Hint: The digits 1, 0 and 8 stay the same when viewed upside down, whereas 9 becomes 6 and 6 becomes 9].

Three-digit perfect squares are 196 and 961, which looks same when viewed upside down.

Question 141

A three-digit perfect square is such that, if it is viewed upside down, the number seen is also a perfect square. What is the number?

[Hint: The digits 1, 0 and 8 stay the same when viewed upside down, whereas 9 becomes 6 and 6 becomes 9].