Quiz No -1

 

The Correct Answer is  45.
Logical Answer -
1 +4 =5 (  4*1 = 4 +1 = 5)
2+5 =12 ( 5*2 = 10 + 2 = 12 )
3+6=21  ( 6*3 = 18 +3 = 21 )
5+8 = 45 ( 8*5 = 40 + 5 = 45)