alleryযদি নিৰ্দিষ্ট দৰত 12 টা কলমৰ মূল্য Rs 90 হয়, তেন্তে 20 টা কলমৰ মূল্য হ'ল
ARs 120
BRs 135
CRs 160
DRs 150
Answer & Solution
Correct answer: D. Rs 150
এটা কলমৰ মূল্য Rs 7.50, গতিকে 20 টা কলমৰ মূল্য Rs 150।
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