Drive safe - advertisement

eraser  advertisment :-
  let two boys or girls be always topper in class.they are equal in everythings like same dress same note books,same marks but they are enemies.let one person be mam or sir.let one boy has very cheep quality but more cost  eraser and other boy has good eraser with less cost.when the mam or sir ask to write exam with pencil the boys had wrote wrong so they try to rubb it.but the boy's book having very cheep quality eraser  becomes black.when other boy having good eraser gives him  the eraser the book turns into white so you can say"buy good eraser with less cost,,get full marks in exam!"

hope this may helpful to you if so plzz mark the stars beside thanks below the answer

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plzz if it helps you plzz mark the stars below ,beside thanks plzzz i am in need