Question

in an examination 40% of the students failed in mathematics and 30% failed in english and 10% failed in both . find the % of student who passed in both the subject

Answer 1

Answer:

x

Step-by-step explanation:

let the number of students be x                          

40/100*x=4/10x                                      for english,

x-4/10x                                                           30/100*x

=6x/10