Question

1+4=5 2+5=12 3+6=21 8+11=?

Answer 1

Solution :-

1+4 = 5 ; 2+5 = 12 ; 3+6 = 21 ; 8+11 = ?

If we see the series then we will find that the numbers in the series are in this way.

# (1*4) + 1 = 5
    4 + 1 = 5

# (2*5) + 2 = 12
   10 + 2 = 12

# (3*6) + 3 = 21
   18 + 3 = 21

# (4*7) + 4 = 32 [Which is not given in the series]
   28 + 4 = 32 

# (5*8) + 5 = 45 [Which is also not given in the series]
   40 + 5 = 45

# (6*9) + 6 = 60 [Which is also not given in the series]
    54 + 6 = 60

# (7*10) + 7 = 77 [Which is also not given in the series]
    70 + 7 = 77

# (8*11) + 8 = 96 [Number about which the question is asked]
    88 + 8 = 96

So, the required number in the series will be 96.
 
Thanks for asking the question.