Correct Answer - Option 1 : 55
Given:
Average score in 40 matches = 44.5
Average score in first 30 matches = 41
Formula used:
Average = (Sum of observation)/(Number of observation)
Calculation:
Total score in all matches = 40 × 44.5
⇒ Total score in all matches = 1780 runs
Total score in first 30 matches = 41 × 30
⇒ Total score in first 30 matches = 1230 runs
Total score in last 10 matches = (1780 - 1230) = 550 runs
Average score in last 10 matches = 550/10
⇒ Average score in last 10 matches = 55 runs
∴ The average score in last 10 matches is 55 runs.
