Of the calls a directory assistance operator received, 188 were requests for telephone numbers listed in the c?

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Of the calls a directory assistance operator received, 188 were requests for telephone numbers listed in the current directory. This accounted for 94% of the calls for assistance that the operator received.








(a) How many calls did the operator receive?








(b) How many telephone numbers requested were not listed in the current directory?|||(a) If x is the total number of calls:


188/x = 0.94 ie x = 200





(b) 200-188=12