There was a mistake in the answer of 15th December 2016 Puzzle. 47 was missed out from the list of numbers which satisfy given conditions.
Correct answer is: Option 5) 5
Marks has been provide to all the users who have selected Option 5) as the answer.
Mathematics has 25%formulas, 25%proofs and apply 25%thinking and 25%efforts.
In real life situations proofs are nothing but already existed stories(we know the solutions from all experienced people).
formulas are nothing but goals. we have so many goals b
K. Mounika
Common sense is the collection of prejudices acquired by age eighteen.