1. Rashika can do a work in 5 days. Rashmi can do the same work in 7 days. Both of them finish the work together and they get Rs.240 for the work. What is the share (in Rs) of Rashika?
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By: anil on 05 May 2019 02.04 am
Time taken by Rashika = 5 days and by Rashmi = 7 days Efficiency $$propto$$ $$frac{1}{time}$$ => Ratio of efficiency of Rashika and Rashmi = $$7:5$$ $$ herefore$$ Share of Rashika = $$frac{7}{(7+5)} imes240$$ = $$7 imes20=Rs.$$ $$140$$ => Ans - (C)
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