A school community had planned to reduce the number of grade 9 students per classroom by constructing additional class rooms. However, they constructed 4 less rooms than they planned. as the result, the number of students per class was 10 more they planned. if there are 1200 grade 9 students in the school, determine the current number of class rooms and the number of students per class.
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Step-by-step explanation:
They planned to build n+4 rooms, but built only n
1200/n = 1200/(n+4) + 10
Without even doing the math, recall that 1200 = 24*50 = 20*60
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