Question 1204385
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Probably, you mean making this computations using tables, but I think that the time to work
with tables gone into the past approximately 40 years ago.


I will work using calculators - regular TI-83/84 and/or online.


Regular calculators use a standard function 

    z-score = invNorm(area, mean, st.deviation),


where area is the area to the left of the z-score.  In our case

    z-score = invNorm(0.05, 49, 16) gives the answer  z-score = 22.682.


Online calculator  https://davidmlane.com/hyperstat/z_table.html  gives the same answer  
(use it in the "Value from an area" mode).


Rounded as requested, the answer is  score = 22.7.
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Solved.