Answer:
Rounak starts with 4 packs of 12 glitter pens, which gives her a total of 4 * 12 = 48 glitter pens.
She also has 7 packs of 8 scented pens, so she has 7 * 8 = 56 scented pens.
When she gives her friend a pack of glitter pens, she now has 48 - 12 = 36 glitter pens left.
In exchange, she receives a new pack of scented pens, so she now has 56 + 8 = 64 scented pens.
Overall, Rounak now has 36 glitter pens and 64 scented pens.
In total, she has 36 + 64 = 100 pens.
Explanation:
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