how many pencils would be required to complete a set of 12,15,20
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Step-by-step explanation:
which comes out to be total pencil given to all student 5N
While 10 pencils are left,
So total pencil (5N+10)
the total pencil was given to students = (5N+10)
Now again, 4 pencils given to each student,
which comes out to be total pencil given to all student 4N, While 20 pencils are left,
So total pencil (4N+20).
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