Question

1800 boys and 900 girls appeared fir an examination.If 42% of the boys and 30% of the girls passed,find the number of boys passed,number of girls passed,total number of students passed,number of students failed and % of students failed

Answer 1

So, 42/100*1800=756, 756 is the number of boys passed
30/100*900=270, 270 is the number of boys passed
So, number of students passed is 756 is 1026
So no. of students given exam are 1800+900=2700
2700-1026 is 1674
1674/2700*100 is 62
So 62% students failed