December 2, 2024 by AdminIf the average (arithmetic mean) of 5, 9, k and m is 12, what is the average of k+7 and m?20.521.51417 Show Correct AnswerExplanation: 20.5Related posts:দুটি কোন সমান হলে অবনতি কোণ কত ডিগ্রি?x – y = 2 এবং x²- y² = 16 হলে, x এর মান কত?A work is to be done by 15 labors working 44 hours in a week. 4 person become ill. How many hours will be needed in a week for the remaining workers to do it?If log_x(1/16) = – 2 then x =