1. 4
2. 8
These are the only possible answers
Median is the middle number of a data. To find median, you have to list the numbers in numerical order and find the middle number.
If I'm understanding the question correctly, 7+3=10. 10*8=80.
In a geometric progression:
a, b, c, d...
The common ratio can be obtained using:
b/a = c/b = d/c
b/a = 112 / 64 = 1.75
c/b = 196 / 112 = 1.75
d/c = 343 / 196 = 1.75
The common ratio = 1.75