Discussion :: IBPS BANK EXAM TEST 1
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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
Explanation :
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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