Question 896878
1/a+1/m+1/c=1/60
a=2m
c=m+10
1/(2m)+1/m+1/(m+10)=1/60

a=292.315,   c=156.158,   m=146.158
rounded
a=292,   c=156,   m=146
check
60/292+60/156+60/146=950/949
close enough
ok