Question

A man born in the first half of 19th century was X year old in year X square .when was he born.?

Answer 1

Answer:

He was born between 1800 and 1850 ,and the only square between these numbers is 1849,

$1849 = {43}^{2}$

So, the man is 43 years old in the year 1849( since,the man was x years old in year x square)

Therefore he was born in 1806(1849-43=1806)

hope it helps you...