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Manish kumar virani

· started a discussion

· 1 Months ago

wrong (Question:113939.0)

sir solution me pra kaam 20 din le raha he lekin pura kaam 30 din me hoga

Question:
9 men finish one-third work in 10 days. The number of additional men required for finishing the remaining work in 2 more days will be 
Options:
A) 78
B) 81
C) 55
D) 90
Solution:
Ans: (b)
9 men finish the 1/3rd work in 10 days.
9 men finish remaining work in 20 days.(i.e. 2/3 of work).
9 men finish total work in 30 days.
therefore to complete the remaining work in 2 more days,
Let the total number of men to complete the  work be x,
x/9=20,
\(\Rightarrow\)x=20*9
\(\Rightarrow\)x=180,
number of men required=180/2=90 men
Hence additional number of men required=90-9=81 

Abhinav Sinha

· commented

· 1 Months ago

Dear student,
Please read the solution properly, answer is correct.
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