Pastor Paul prays 20 times per day, except on Sunday, when he prays twice as much.  Pastor Bruce prays half as much as Pastor Paul, except on Sundays, when he prays twice as much as Pastor Paul.  How many more times does Pastor Paul pray than Pastor Bruce prays in a week?
Pastor Paul prays 20*6=<<20*6=120>>120 days per week, except Sunday.
On Sunday, Pastor Paul prays 2*20=<<2*20=40>>40 times.
Per week, Pastor Paul prays 120+40=<<120+40=160>>160 times.
Pastor Bruce prays half as much as Pastor Paul does on all days except Sunday, for a total of 120/2=<<120/2=60>>60 times.
Pastor Bruce prays twice as much on Sundays as does Pastor Paul, or 40*2=<<40*2=80>>80 times.
In total, Pastor Bruce prays 60+80=<<60+80=140>>140 times per week.
Thus, per week, Pastor Paul prays 160-140=<<160-140=20>>20 more times per week than Pastor Bruce.
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