Question

fill the gap in the following with the proper numbers 5,6,12,10,28,26,62,62,_,_

Answer 1

the answer will be 132 and 126. divide the series into 2 subseries of alternating terms. the first one goes like *2+2,*2+4,*2+6.. hence the next will be *2+8. the other series can be found out by adding an even square to the terms.