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In an examination, 1100 boys and 900 girls appeared, 50% of the boys and 40% of the girls passed. The fail percentage is?
- 54.5%
- 45.5%
- 45%
- 60.5%
50% of 1100=550
40% of 900= 360
550+360=910 passed
2000-910=1090 failed
1090/2000=0.545
0.545*100=54.5%