Question

If it is possible to form a number with the second, the fifth and the eighth digits of the number 3 1 5 4 9 7 8 6, which is the perfect square of a two-digit even number, which one of the following will be the second digit of that even number ?

• A. 1
• B. 4
• C. 6
• D. No such number can be formed
• E. None of these

Answer 1

The correct option is B 4

The digits selected are 1, 9 and 6 respectively.
The perfect square number of 14 is 196.
so the second digit of 14 is 4.