Sameer bought a box containing ball pens and gel pens. the number of ball pens was 6 less than gel pens and there were a total 24 pens .how many gel pens did Sameer Buy
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let the no of ball pen =x
then no of gel pen =x+6
now from question
x+x+6=24
2x=24-6
2x=18
x=9
so no of ball pen = 9
And no of gel pen=9+6=15answer
then no of gel pen =x+6
now from question
x+x+6=24
2x=24-6
2x=18
x=9
so no of ball pen = 9
And no of gel pen=9+6=15answer
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