Maths MCQs, Junior Clerk in Punjab Police Department 20229/11 + 5/7 =?A. 2/3 B. 3/2 C. 1/3 D. None of these If 54 is subtracted from three times a certain number the result is 36. Find the number.A batsman in his 12th innings makes a score of 80 runs and there by increases his average score by 3. What is his average after the 12th innings?