Refer to the following series and answer the question. (Counting to be done from left to right only.) (All numbers are single-digit numbers only.)
(Left) 5 4 5 6 5 8 5 1 7 6 3 9 7 6 4 1 7 6 4 5 7 6 4 7 7 6 (Right)
How many such even digits are there, each of which is immediately preceded by a perfect square and immediately followed by an even digit? (NOTE: 1 is also a perfect square.)
- AOption (a)
Four
- BOption (b)
One
- COption (c)
None
- DOption (d)
Two
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Correct answer
None
Why this answer is correct
Given: 5 4 5 6 5 8 5 1 7 6 3 9 7 6 4 1 7 6 4 5 7 6 4 7 7 6
(Left) 5 4 5 6 5 8 5 1 7 6 3 9 7 6 4 1 7 6 4 5 7 6 4 7 7 6 (Right)
Required Conditions: Perfect square - Even digits - Perfect square.
So, there are None such even digits.
Hence, the correct answer is 'Option 3'.