Test your IQ If 5 + 3 = 28 9 + 1 = 810 8 + 6 = 214 5 + 4 = 19 Then 7 + 2 = ??

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asked Sep 22, 2015 234k views

1 vote

Test your IQ If 5 + 3 = 28 9 + 1 = 810 8 + 6 = 214 5 + 4 = 19 Then 7 + 2 = ??

Mathematics
middle-school

Gonzohunter asked

by Gonzohunter

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2 Answers

5 votes

5+3 = 8 / 5-3= 2 = 28
9+1 = 10 / 9-1 = 8 = 810

Therefore ...
7+2 =9 / 7-2= 5 = 59
Hope this helps! :)

Jason Novak answered Sep 24, 2015

by Jason Novak

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7 votes

$5 + 3 = 28\ \ \ 28=(5-3)\cdot10+(5+3)\\ 9 + 1 = 810\ \ \ 810=(9-1)\cdot100+(9+1)\\ 8 + 6 = 214\ \ \ 214=(8-6)\cdot100+(8+6)\\ 5 + 4 = 19\ \ \ (5-4)\cdot10+(5+4)\\ Then\\ 7 + 2 = 59\ \ \ (7-2)\cdot10+(7+2)\\\\Ans.\ \ \ 59$

Colt answered Sep 27, 2015

by Colt

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