Question

In an examination, there were 640 boys and 360 girls. 60 % of the boys and 80% of the girls were successful. How many in all failed

Answer 1

total no of student failed is 328

Answer 2

Total students=640+360
=1000
Boys passed=60÷100×640
=384
Girls passed=80÷100×360
=288
Total passed=384+288
=672
Total failed=1000-672
=328