1. A single persons takes 3 minutes to write a letter. If from 10 a:m. to 12.00 noon, 1960 letters are to be written, how many persons should be employed on this job?
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By: anil on 05 May 2019 01.27 am
Time taken by a single person to write a letter = 3 min => No. of letters written from 10 a.m. to 12.00 noon (i.e. 120 min) by a single person = $$frac{120}{3}$$ = 40 letters $$ herefore$$ No. of persons required to write 1960 letters in 120 min = $$frac{1960}{40}$$ = 49
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