The student council of sta.Lucia high school needed 2,250 pesos for an annual trip.If five more members joined the group,each member would then save 5pesos. How many students planned to make a trip?
The answer is 45.
Let x be the number of students and y be the cost per student. The first sentence means
Substituting this value of y in the second equation gives
By the quadratic equation, one gets