in a science class, 18 students read physics,25 read mathematics, 23 read chemistry, 9 read physics and chemistry, 10 read maths and chemistry, 6 read physics and chemistry. if there were 50 students altogether and 5 students did not read any of the three subject. how many children read all the three subject?

huh? im pretty sure it is in 199

step-by-step explanation:

28

step-by-step explanation:

because that's the answer

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya