27. 9, 12, 15, 18, 20ও 22 -এর গড় 1 বৃদ্ধি পাবে যদি
15-এর বদলে নেওয়া হয়।
(A) 16
(B) 17
(C) 19
(D) 21
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Answer:
19 is the best answer
Step-by-step explanation:
it is helpful to you
FaaKibAAz:
i think its 21
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