A girl completed her work in 3 days. On the first day she did 2/5 of the work and on the second day she did 3/7 of her work. How much work did she do on third day?
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Step-by-step explanation:
Let the whole work be =1
On the first day she did = 2/5 of the work
On the second day she did = 3/7 of the work
So She did on the third day = 1-(2/5+3/7)
= 6/35 of the work
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