A does a work in 10 days and b does the same work in 15 days. In how many they together will do the same work?
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Answer:
in 10 days
Step-by-step explanation:
as A in 10 days with B help he will reduce 5 days in his work as A is faster B will reduc e 10 days with help of A so15-10=5 and 10-5=5 and 5+5=10
therfore it will take 10 days to complete the work
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