 If you&#x27;re going to use that metric, use ~1.25 B for Facebook (monthly actives on mobile).<p>1.25B&#x2F;80m = ~16 times.  The average Facebook user in the US spends about 40 minutes on FB per day (not sure of mobile vs desktop breakdown):<p>16*40minutes = 10 hours per day on Pandora on average.  Absolutely no way.