There are students and benches in a classroom . If 4 students sit in each bench, 3 benches are left vacant.But if 3 students sit in a bench, 3 students are left standing.What are the total no. of students ?
The number of students is 48
Let the number of students =
let the number of benches =
from the first statement
from the second statement
Substituting equation 2 into equation 1
Substituting the value for x in equation 2