alleryলেবেল 7, 12, 17, ..., 82 5 বৃদ্ধি; এটা হেৰাই যায়, যোগফল 660 ৰৈ যায়। লেবেল হেৰুৱাইছেনে?
A62
B47
C57
D52
Answer & Solution
Correct answer: D. 52
মুঠ 16 লেবেল আছে যাৰ মুঠ 16 × (7 + 82) ÷ 2 = 712, গতিকে হেৰুৱা লেবেলটো 712 − 660 = 52।
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