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Let total no. of students be x
so ,by car = 3x/5
by bus= x/4
own= x-(3x/5+x/4)
=x-(12x+5x/20)
=x-17x/20=20x-17x/20
=3x/20
students walk on there own with parents=3x/20/3x/4=324
=3x/20/4x/5= 324
=1x/5=324
x=324×5
1620
hope this helps you
manvi4197:
but answer is 2880
you r answer is weong
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