So in these kind of questions we have to find what common pattern is prevailing so in this one:
Subtracting every no from it's succeeding no gives a difference and those respective differences are forming pattern as follows:
16–4=12
36–16=20
64–36=28
100–64=36
So we have a new series 12 20 28 36 in this Subtracting every no from it's succeeding no gives a difference of 8 now in the latter series continues with the same pattern of difference of 8 and the series proceeds with next numbers 44 52 60 now these no gets added in the first original series as described as follows :
What ever line is displayed in the answer that goes up 2 and over 3 on the graph is your answer.
Ex.
If you start with a graph at point 0,0 then go up 2 to point 2 on the y axis then over 3 to point 3 on the x axis. Draw a straight line between the first coordinate which was 0,0 and the second which would be 3,2 that line would have a slope of 2/3. then the next coordinate after 3,2 would also go up 2 and over 3 which would be point 6,4 and that coordinate would also fall on the thee same line as the previous 2 coordinates.