Question
Last year, one fourth of the students in your class played an ninstrument.
This year,
6
students
joined
the
class.
Four
of the
new
students
play
an
instrument.
Now,
one
third
of
the
students
play
an
instrument.
How
many
students
are in
your
class
now
18, 24, 30, or 48?
This year,
6
students
joined
the
class.
Four
of the
new
students
play
an
instrument.
Now,
one
third
of
the
students
play
an
instrument.
How
many
students
are in
your
class
now
18, 24, 30, or 48?
Answers
Original number of students = x
original number playing = x/4
this year:
number of students = x+6
number playing = x/4 + 4
x/4 + 4 = (1/3)(x+6)
times 12
3x + 48 = 4x + 24
-x = -24
x = 24
So now there are x+6 or 30 students in the class
original number playing = x/4
this year:
number of students = x+6
number playing = x/4 + 4
x/4 + 4 = (1/3)(x+6)
times 12
3x + 48 = 4x + 24
-x = -24
x = 24
So now there are x+6 or 30 students in the class
Thank you so much!
KOWALSKI, ANALASIYSSFJSIOJF.
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