alleryপাঁচটি সংখ্যার গড় 10। একটি ষষ্ঠ সংখ্যা 16 যোগ করা হলো। নতুন গড় কত?
A13
B11
C10
D12
Answer & Solution
Correct answer: B. 11
পূর্ববর্তী যোগফল হলো 50, নতুন যোগফল হলো 66, এবং 66-কে 6 দিয়ে ভাগ করলে 11 হয়।
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