Question

The metro train costs $6.30 round trip to ride to work each day. You work 4 days a week (16 days a month). If you can get a monthly pass for $78, how much can you save by buying the pass?

Answer 1

metro train costs $6.30-------> $6.30
4 days---------------->$25.2
so in a month,

4 days---------------->$25.2
16 days ------------>?    ($25.2 x16 )/ 4=$100.8
the difference is
$100.8-$78= $22.8