V= 47. 81 + 47 - 13= 47.
-13
(13+47+31+10+20+50+36+54+122+4)/60==(13+47+31+[10+20+50]+36+54+122+4)/60 =(13+47+31+80+[36+54]+122+4)/60=([13+47]+31+80+90+122+4)/60=(60+31+80+90+122+4)/60=(31+122+4+60+80+90)/60=(153+4+60+80+90)/60=(157+60+80+90)/60=(157+140+90)/60=(157+230)/60=387/606 min. 27 sec.
60
47 plus 61 is equal to 108.
2 + 5 is 7 + 6 =13 + 7 = 20 + 8 = 28 + 9 = 37 + 10 is 47.
16 + 12 + 47 = 75
47 plus 39 gives 86.
75+2(32)+4(39)+47 =75+64+156+47 =75+220+47 =122+220 =342
63 plus 47 plus 42 plus 21 is equal to 173.
13+13+13+13+13+13+13+13+13+13 = 13 * 10 = 130.
91