Question

hey genius,

tell me the answer,

#1 - Brain Twister Puzzle

2+3=8,
3+7=27,
4+5=32,
5+8=60,
6+7=72,
7+8=??

Solve it?

Answer 1

Hi,

Here is your answer,

2 + 3 = 8
 
Now, we can write as 2 + 3 - 1  { Subtract 1 and we need to multiply by 1st number }

= 5 - 1 

= 4 × 2 

= 8 

3 + 7 = 27 

= 3 + 7 - 1 

= 10 - 1

= 9 × 3 = 18

4 + 5 = 32

= 4 + 5 - 1

= 9 - 1 

= 8 × 4

= 24

5 + 8 = 60

= 5 + 8 - 1

= 13 - 1 

= 12 × 5 

= 60 

6 + 7 = 72 

= 13 - 1 

= 12 × 6

= 72

7 + 8 = ?

7 - 8 - 1

= 15 - 1

= 14 × 7

= 98.


Hope it helps you !

Answer 2

98

2+3=2*[3+(2-1)]=8
3+7=3*[7+(3-1)]=27
4+5=4*[5+(4-1)]=32
5+8=5*[8+(5-1)]=60
6+7=6*[7+(6-1)]=72
therefore
7+8=7*[8+(7-1)]=98
x+y=x[y+(x-1)]=x^2+xy-x