Q8
ArithmeticAverages & Ages
The average of 11 results is 32. The average of first five result is 27 and that of the last five result is 34. The sixth result is:
- a.48
- b.50
- c.47
- d.52
Answer: (C) 47
Total of 11 results = 11 × 32 = 352; first five total 5 × 27 = 135 and last five total 5 × 34 = 170. The sixth result is 352 − 135 − 170 = 47. The other values would make the overall total wrong.