JohnLayton
contestada

2 + 3 =8
3 + 7 = 27
4 + 5 = 32
5 + 8 = 60
6 + 7 = 72
7 + 8 = ??
It's a tricky one, but it has a solution.
Please show your work.

Respuesta :

Insidious
Formula: a + b = c × a - a

2+3 = 5
5 × 2 = 10 
10 - 2 = 8 

3 + 7 = 10
10 × 3 = 30
30 - 3 = 27

4 + 5 = 9 
9 × 4 = 36 
36 - 4 = 32

5 + 8 = 13
13 × 5 = 65
65 - 5 = 60

6 + 7 = 13 
13 × 6 = 78
78 - 6 = 72

7 + 8 = 15
15 × 7 = 105
105 - 7 = 98 

Answer: 7 + 8 = 98

Assuming that your looking for a pattern this is what I was able to find...

2*3= 6+(2*1)=8

3*7= 21+(3*2)=27

4*5= 20+(4*3)=32

5*8= 40+(5*4)=60

6*7= 42+(6*5)=72

7*8= 56+(7*6)=98