Elementary Math Problem

Posted: April 29, 2013

If we assigned a number to every letter in the English alphabet starting from A = 1, B = 2, .... Z = 26, which of the following word(s) could be written only with the numbers - 4, 7, 9, 13, 14, 15 and 18 A. WELCOME   B. GOOD MORNING   C. GOOD NIGHT   D. GOOD EVENING