deadly help required yaar !!!

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ajkool111's picture
User offline. Last seen 3 years 43 weeks ago. Offline
Joined: 2008-05-22
Points: 23
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hello everyone, can any1 help me in solving particular type of mathematical questions like:

if 30 men make 70 chairs in 3 days, how many complete chairs will be made by 78 men  in
5 days!!

yaar someone plz explain the logic , these questions really get on nerves!!

 

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CAT@IIMs's picture
User offline. Last seen 1 year 5 weeks ago. Offline
Joined: 2008-05-10
Points: 297
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2 ways back to back

Process 1:
By applying simple logic:
         30 men take 3 days to complete 70 chairs
    =>  1 man takes1 day  to complete  70/(30*3)chairs
    => 78 men take 5 days to complete  70*78*5/90chairs

Process 2:
By applying formula:      
M1*D1/W1=M2*D2/W2
=>W2=M2*D2*W1/M1*D1=(78*5*70)/(30*3)[M2,D2,W2 is for 2nd case nd M1,D1,W1 for 1st case]

Giv ur best to d world.
Nd d best will cm back to u.....

Regards,
Dipanjan.....

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