mini has some pencils.if she gives 3 pencils to each pupil,she will have 20 pencils left.if she gives 4pencils to each pupil, she will have none many pencils does she have

Dear student,

Please find below the solution to the asked query:

Let the total number of people be 'x'It is given that if she gives 3 pencils to each pupil, she is left with 20 pencilsSo the total number of pencils are 3x+20Also it is given that if she gives 4 pencils to each pupil, she will have nleft. So the total number of pencils can also be expressed as 4xThis implies that,          4x=3x+20   4x-3x=20            x=20This implies that the total number of pencils are,   320+20=60+20=80

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