Exercise 5.3 Solve each of the following Cryptarithms: Solution: Two possible values of A are: (i) If 7 + B < 9, 3 + A = 9 ∴ A = 6 But if A = 6, 7 + B must be larger than 9. Hence, it is impossible. (ii) If 7 + B > 9 ∴ 1 + […]
Exercise 5.3 Solve each of the following Cryptarithms: Solution: Two possible values of A are: (i) If 7 + B < 9, 3 + A = 9 ∴ A = 6 But if A = 6, 7 + B must be larger than 9. Hence, it is impossible. (ii) If 7 + B > 9 ∴ 1 + […]