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If 4 examiners can examine a certain number of answer books in 8 days by working 5 hours a day...

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If 4 examiners can examine a certain number of answer books in 8 days by working 5 hours a day, for how many hours a day would 2 examiners have to work in order to examine twice the number of answer books in 20 days.

posted Jul 13, 2016 by anonymous

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4 Answers

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Less examiners, more hours per day (Indirect)
More days, less hours per day (Indirect)
More answer books, more hours per day (Direct)

Examiners 2:4
Days 20:8 --------- :: 5:x
Answer books 1:2

=> x = 4*8*2*5/2*20*1 = 8 hours per day

answer Feb 18, 2018 by Yasin Hossain Siinan
–1 vote


1:4:8:5 = 160
2:2:20:? =320
? =4 hours

answer Jul 14, 2016 by Gangadharan Kv
–1 vote

4 examiners, 8 days, 5 hrs= 40 hrs. Let no. of ans books evaluated be 10 each.
2 examiners, 20 days 40 books to be evaluated.
since 20 hrs and 20 days
its 1 hr per day

answer Jul 14, 2016 by Naga Jyothi
–1 vote

20 hours in 8 days by 2 examiners

answer Feb 18, 2018 by Gangadharan Kv

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