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efficiency of Q is three time more than efficiency of P.both started working alternatively,starting with Q and completed the work in 37 dayys.if R alone an completw the same work in 50 days then find in how many days P and R together will complete the work?

 

7 Comments 192 Views
Ragini mishra 9 months ago
See previous comments 5 of 7 comments

Ragini mishra 9 months ago

BUT  ANS KUCH OR HAI

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Ragini mishra 9 months ago

   

        23

32  -------ANS

        36

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Amar 9 months ago

Haa..AA gaya..dekhlo ek Baar

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Ragini mishra 9 months ago

hmm...tnqq

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sandy 9 months ago


Got it 32.5 days

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sandy 9 months ago

P and Q do it alternatively in 37 days so both working together do it in 37/2 days..work 2/37

 

If P takes 4 days Q would take 1 day...( Q is 3 times more efficient)

 

Work done

1/4x+ 1/x=2/37

We get x=185/8

Days by P ie 4x=185/2

P does in 185/2 ,R does in 50 days , So gives the ans.

 

- Reply (1)

Ragini mishra 9 months ago

frownbt nsr is diff

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sandy 9 months ago

Issey jyada close toh malum nhi :l

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