Problema Solution
A dealer sold a certain number of portable TV sets at P6,400 each. The dealer would have taken in as much money had 3 fewer sets been sold at P7,680. How many sets were sold at P6,400.
Answer provided by our tutors
let x = the number of sets sold at 6,400
6400*x = 7680(x - 3)
by solving we find
x = 18 sets
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