Answer: first option 22×c = 88
Justification:
This problem may be solved by setting a proportion.
A proportion is the equality of two ratios.
Here the first ratio is the number of chairs that Jim can assemble in 22 hours:
88 chairs
--------------
22 hours.
The second ratio is the number of chairs (c) that he can assemble in 1 hour:
c
--------
1 hour
Then, when you equal both ratios you get the proportion:
88 chairs c
------------- = --------
22 hours 1 hour
Solving for c, you get: c × 22 = 88, wich is the first option.