Question

If it is possible to form a number with the first, the fourth and the seventh digits of the number 4671358 which is the perfect square of a two-digit odd number which of the following will be the digit in the ten's place of that two-digit odd number? If no such number can be formed give O as the answer and if more than one such number can be made give X as the answer

• A. 2
• B. 3
• C. O
• D. X

Answer 1

The correct option is A 2

First, fourth and seventh digits of the number 4671358 is 4, 1 and 8
From this we get 841 square of 29
29 is the two digit odd number and 2 is in the ten's place
So the answer is (1)