1. A sum of money is sufficient to pay A’ s wages for 21 days and B’s wages for 28 days. The same money is sufficient to pay the wages of both for
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By: anil on 05 May 2019 01.57 am
the lcm of 21,28 = 84 lets assume amount of money to be 84 units wage of A per day = $$frac{84}{21}$$ = 4 units wage of B per day = $$frac{84}{28}$$ = 3 units wage per day of A+B = 4+3 = 7 units total days sufficient are = $$frac{84}{7}$$ = 12 days
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