3 years ago

15

Mathematics

1 answer:

IceJOKER [234]3 years ago

4 0

4x+3x=7x

18 girls-5%

Total no: of girlsx5/100=18

Total-100x18/5-360 girls

4x+3607x

360-7x-4x

360-3x

x=360/3-120

4x=4x120=480

3x=3x120=360

Total no: of students=480+360-840

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