A sum of money is sufficient to pay X's wages for 36 days and Y's wages for 45 days. The same money is sufficient to pay the wages of both for?
Choose the correct choice from the following answers:
A) 16
B) 17
C) 18
D) 19
E) 20
Let the total money be $x   X's 1day work = $ x/36   Y's 1day work = $ x/45   X+Y 1day work = $ x/20   Money is sufficient to pay the wages of both for 20days   Answer is 20
<result>E</result>
A sum of money is sufficient to pay X's wages for 36 days and Y's wages for 45 days. The same money is sufficient to pay the wages of both for?