Number Puzzle #168
If 1 + 2 = 13
2 + 3 = 61
3 + 4 = 193
Then 4 +5 = ?
Check your answer:-
Answer: 481
Explanation:
Explanation:
A+B = (A*B + 2)^2 – 3
Answered by: in disqus comments.
Facebook Comments
Nelson DSouza says
Prabu Sekkaaran says
super sir.. nice explanation
pega exchange says
481
First Line(1+2=13)
1*2+2=4
4^2(i.e 4*4)=16
16-3=13.
Second Line(2+3=61)
2*3+2=8
8^2(8*8)=64
64-3=61
Similarly the rest follows.
Ashwani says
241
Prabu Sekkaaran says
How? can you explain?
Ashwani says
Just add 2nd and 3rd, and then subtract 1st, u’ll get the answer
Prabu Sekkaaran says
why? what is the logic is this