The only two numbers that would make the whole expression divisible by 8 are 0 and 8. Since the number also has to be divisible by 5, though, the last digit must be a 0 or a 5. Therefore, A=0. Hope this helps!
Picture it in your head at -12 feet elevation (12 feet below ground level), the basement starts 62 feet from that level is the roof so count 62 units up from -12 and get 50 feet above ground level (60-12=50)