If it is possible to from only one such number with the third, the sixth and th

Question

If it is possible to from only one such number with the third, the sixth and the seventh digits of the number 7394261 which is the perfect square of a two digit odd number, which of the following will be the first digit of that two digit odd number?

Answer: Option B

1 2 3 4 5 6 7

| | | | | | |

7 3 9 4 2 6 1

169 => 13 * 13

196 => 14 * 14

But, 14 is an even number.

Required number = 13

its unit's digit is 3.

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