alleryছয়টি সংখ্যার গড় 15। 25 সংখ্যাটি সরিয়ে নেওয়ার পর, বাকি পাঁচটির গড় কত?
A12
B15
C11
D13
Answer & Solution
Correct answer: D. 13
মোট মান হলো 90, সুতরাং বাকিগুলির যোগফল 65, এবং 65-কে 5 দিয়ে ভাগ করলে 13 হয়।
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