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Mental Ability
Time and Work
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BPSC Prelims 2020 General 📅 14 Feb, 2021

Mohan can do a bit of work in 25 days which can be completed by Sohan in 20 days. Both together labour for 5 days and afterward Mohan leaves off. How long will Sohan take to complete the remaining work?

A
20 days
B
11 days
C
14 days
D
21 days
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BPSC Prelims
2020 • 14 Feb, 2021 • General
Mohan can do a bit of work in 25 days which can be completed by Sohan in 20 days. Both together labour for 5 days and afterward Mohan leaves off. How long will Sohan take to complete the remaining work?
Correct Answer
See Explanation
उपर्युक्त में से कोई नहीं/उपर्युक्त में से एक से अधिक...
Ref/Book : Combined rate = 1/25 + 1/20 = 9/100. Work in 5 days = 45/100. Remaining = 55/100 = 11/20. Sohan's time for remaining = (11/20) / (1/20) = 11 days.
Ref. Subject संयुक्त दर = 9/100. 5 दिनों में काम = 45/100. शेष = 11/20. सोहन का समय = 11 दिन।
Chapter Mental Ability
Ref. Topic Mathematics
Pg. No Time and Work
💡 Analysis & Explanation
Introduction ▼
उपर्युक्त में से कोई नहीं/उपर्युक्त में से एक से अधिक
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