At a party, Mrs Ong gave each pupil 5 nuggets and had 30 nuggets left. If she gave each pupil 6 nuggets, she would have 4 nuggets left. How many nuggets did Mrs Ong prepare for the party?
Let the number of students be x
number of nuggets = 5x + 30
or
number of nuggets = 6x + 4
6x+4 = 5x+30
x = 26
There were 26 students, so she neede
26(5) + 30 or 160 nuggets.