2 3 4 15 12
3 4 5 28 20
4 5 6 45 30
5 6 7 66 42
6 7 8 91 56
is 91
**1/ 4+2=6, 6*2=12 , 12+3=15, 3*4= 12 ( 2 3 4 15 12)
**2/ 5+3= 8, 8*3 = 24, 24+4= 28, 4*5= 20 ( 3 4 5 28 20)
**3/ 6+4 = 10,10*4=40, 40+ 5=45, 6*5=30 (4 5 6 45 30)
**4/ 7+5=12, 12*5=60, 60+6=66, 6*7= 42 (5 … Read more