Answer :
9
If Cab A completes its route in 36 minutes and Cab B does his in 45 then if you subtract 45 by 46 that is the amount of minutes Cab A waits for Cab B to arrive!
If Cab A completes its route in 36 minutes and Cab B does his in 45 then if you subtract 45 by 46 that is the amount of minutes Cab A waits for Cab B to arrive!