Question

1+4=5.2+5=12.3+6=21.5+8=

Answer 1

Hello,

1+4=5;
5.2+5=10.2;
12.3+6=18.3;
21.5+8=29.5

bye :-)

Answer 2

Solution :-

If we look at the series, we can see that there is a definite pattern in it.

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

(4 + 7 = 32) should also be there in this series between (3 + 6 = 21) and (5 + 8) 

(1*4) + 4 = 5

(2*5) + 2 = 12

(3*6) + 3 = 21

(4*7) + 4 = 32 (Here it is missing)

(5*8) + 5 = 45

So, the next number in the series is 45

Answer.