Divya and Raveena can do a work alone exactly in 20 and 25 days respectively. However, when they work together, they do 25% more work than is expected. If they work for a few days alone and for few days together (both being integers only), then the work could not have been completed in exactly
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Step-by-step explanation:
one day work of divya = 1/20 th part of work
one day work for raveena = 1/25th part of work
together expected part of work in one day
= 1/20 + 1/25
= 9/100
but together they do 25% more than expected
so actual work by both in one day = 9/100*125/100
= 9/80 part
difference in one day work if they worked together from if they worked simultaneously but alone
= 9/80 - 9/100
= (45 - 40)/400
= 5/400
sorry...the question is not complete...with what information is available in question, I could reach this far only.
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