5 persons can prepare an admission list in 8 days working 7 hours a day. If 2persons join them so as to complete the work in 4 days, they need to work perFor

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RRB GG Exam (Bhopal) 2009 click here to view all questions

5 persons can prepare an admission list in 8 days working 7 hours a day. If 2 persons join them so as to complete the work in 4 days, they need to work per For

A10 hours

B9 hours

C12 hours

D8 hours

prashanth ? Dec 18 '2019 at 9:30

Correct answer is: 10 hours

Explanation:

\(\Large \frac{5 \text{ person} \times 8 \text{ days} \times 7hr}{1}= \frac{\left(5+2 \text{ person}\right) \times 4 \text{ days} \times Hperday}{1}\)

=10 hours

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Correct answer is: 10 hours Explanation: \(\Large \frac{5 \text{ person} \times 8 \text{ days} \times 7hr}{1}= \frac{\left(5+2 \text{ person}\right) \times 4 \text{ days} \times Hperday}{1}\) =10 hours prashanth ? answered Dec 18 '2019 at 9:30 All Comments

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