To an international telephone call you the code for the country you are calling codes for country A B and Cate three consecutive inte whose sum is 111 Find the code for each country

Answer 1

x-1, x, x +1 sum to 111

3x = 111

x = 111/3 = 37

36, 37 and 38 sum to 111

A is 36

B is 37

C is 38