Practicing Success
The mean of 11 numbers is 35. If the mean of first six numbers is 32 and that of the last six numbers is 37, then the 6th number is: |
28 29 30 27 |
29 |
Mean of 11 numbers = 35 Sum of 11 numbers = 35*11 = 385 Mean of first six numbers = 32 Sum of First Six Numbers = 32*6 = 192 Mean of last six numbers = 37 Sum of last Six Numbers = 37*6 = 222 Thus 6th number = (222+192)-385 = 29 The correct answer is Option (2) → 29 |