Question

In an exam 400 students appered if 2/3 of boys and all 130 girls passed in examination then find how many boy failed in exam

Answer 1

No of girls = 130
Total Students = 400

So, Total No of boys = 400-130 = 270
Boys passed = 270*2/3 = 90*2 = 180

So Boys failed = 270 -180 = 90