Eighty members of a bike club were asked whether they
like touring bikes and whether they like mountain bikes.
A total of 70 like touring bikes, 47 like mountain bikes,
and 5 do not like either.
What are the correct values of a, b, c, d, and e?
a = 42, b = 28, c = 33, d = 5, e = 10
a = 42, b = 5, c = 28, d = 33, e = 10
a = 5, b = 42, c = 28, d = 10, e = 33
a = 5, b = 10, c = 28, d = 33, e = 42
