Question

f(√ó) denotes the sum of the digits of the number x and g(x) denotes the product of the digits of the number x. How many three-digits are there for which f(x)=g(x), where x is a three-digit number(100 points question)

Answer 1

f(x) = x+x ;g(x) = x*x ; and f(x) = g(x )