self Maths Puzzle

8,9,20,63.....
a)74
b)83
c)124
d)256

Read Solution (Total 1)

(8*1)+1=9
(9*2)+2=20
(20*3)+3=63
so, (63*4)+4=256
11 years agoHelpfull: Yes(0) No(0)

self Other Question

3 people to be seated on 9 seats such that none of them are adjacent 105,112,98,119,91...
a)116,86
b)120,85
c)126,84
d)none