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time and work

A can do a piece of work in 60days while B can do it in 75 days they began together but 20 days before the completion of work A leaves off.how many days B takes to finish the remaining work?

10 Comments 1205 Views
shivani 11 months ago
See previous comments 5 of 10 comments

SAKET SOURAV TRIPATHY 11 months ago

20days

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Enape 11 months ago

Work done in last 20 days by A= W/3

................ Do............ by B= 4W/15

Total = 3W/5 to be done by B alone in 3/5 of 75= 45days

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SAKET SOURAV TRIPATHY 11 months ago

20 days before the completion of work A leaves means last 20 days me hi B work finish karega na!!

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trisha 11 months ago

naah.. saket! 20 days dono milke karenge toh work cmplete hone wala hota he. but A wont work

so B will finish that work in how many days?? qsn aisa he

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BaSu 11 months ago

I too got the same ans.  saket.

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imperfect gal:) 11 months ago

20days BEFORE COMPLETION likha h it mns last 20 days B wrkd alone nd Remaining work jo 220 aa ra h uska olmst 24(4/9) aa ra h..........to agr remaining work k liye puch ra h tv nsr to 24(4/9) hona chahiye na 

jb total wrkng days of B puchega tb wo approx 45 aayega na.....!!!!

 

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imperfect gal:) 11 months ago

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shivani 11 months ago

total work 300 total efficiency 5+4=9 efficiency of a is 5 so,a's work in 20 days is 5*20=100 then 400/9 that is 44 4/9

- Reply (1)

BaSu 11 months ago

It is given, "they began together but 20 days before completion of work A leaves off" this doesn't mean both worked for 20 days or A alone worked for 20 days...

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trisha 11 months ago

yes its 45 na almost

30 ya 20 nahi he na

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shivani 11 months ago

sorry,i got wrong ans before u r right

- Reply (1)

trisha 11 months ago

arre bas mujhe yeh jaan na tha k mera sahi he? ya fir kuch aur he answer.. bas..

thank u:-)

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