If the sum of an infinite GP \(a, a r, a r^2, a r^3, \ldots . .\). is 15 and the sum of the squares of its each term is …

If the sum of an infinite GP \(a, a r, a r^2, a r^3, \ldots . .\). is 15 and the sum of the squares of its each term is 150 , then the sum of \(a r^2, a r^4, a r^6, \ldots . .\). is:

[JEE Main 2021, 26 Aug (Shift 1)]