if 340 candidate passed in the test and 8% lost how many appeard
Answers
Total number of boys + girls appeared in the examination = 320 + 180 = 500 students
Total number of boys = 320
Boys passed = 60 %
Boys failed = 100 - 60 = 40 %
Total number of boys failed = (40*320)/100
= 128 Boys failed out of 320 boys.
Total number of girls = 180
Girls passed = 80 %
Girls failed = 100 - 80 = 20 %
Total number of girls failed = (20*180)/100
= 36 girls failed
Total number of boys + girls failed = 128 + 36 = 164 Students
Percentage of failed students = (164*100)/500
=32.8 %
Hey there!!
Here's your answer
Let us assume that the total students who took part in the exam to be x
Let us assume that the students who lost be y
But in the question, it is given that y = 8% of x = 0.08x
We know that 340 + y = x
⇒ 340 + 0.08 x = x
⇒ 340 = 0.02 x
⇒ x = 17000
So, a total of 17000 students appeared for the exam
Hope it helps you!!