Answers

2016-02-17T23:48:25+05:30
39

3+6=9
4+8=17
17+10=27
27+12=39

hope u will understand
0
well answered
thnx @pãlàáshsharma
2016-02-17T23:54:46+05:30
39
9-3=6
17-9=8
27-17=10
therefore the value of addition increases by 2 plus the previous difference
therefor the difference between ??&27=12
.'.??=39
0