In the array below, in how many different ways can we start with the letter A and move from letter to letter (horizontally, vertically, or diagonally), to spell the word "ARCH"?

A

RR

CC

H

Guest Dec 22, 2022

#2**+3 **

For the first letter in the top row, we have 1 option, for the second letter in the second row we have 2 options, for the third letter in the third row we have 2 options, for the last row we have one option. The total permutations/cases are 1 x 2 x 2 x 1 = 4 different ways to spell ARCH (for this problem, not 4!)

proyaop Dec 22, 2022