Question

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

Answer with full explanation...

Answer 1

45 is the right answer...because
4*1+1=5
2*5+2=12
3*6+3=21
5*8+5=45....

Answer 2

1+4 =5
2+5 =12
3+6 =21
5+8 =?
the answer will be 34
we obtain this by adding the result of previous observation to the second observation......

First we add 1+4 which is equal to 5 ... then this result is to be added with the second series which is given as 2+5 then final result will be equal to 12 similarly, we then add 3+6 to the previous result which will be then equal to 21 and at last 21 is added to the last series that is 5+8 which will be the answer of the given series I.e, 34..............

Hope u will understand.....