a single person takes 3 minutes to write a letter is 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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A person take 3min to write a letter
total letter written by a person in 2hours(120 min) = 120 / 3 =40 letters
therefore, no. of persons employed on this job to write 1960 letters = 1960 / 40
=49
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0
Answer:
49
Explanation:
chain rule
no of persons p
time taken t
work done w
p1*t1/w1=p2*t2/w2(2hrs=2*60=120mins)
1*3/1=x*120/1960
x=1960*3*1/120
x=49
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