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1. The average score of a cricketer for ten matches is 38.9 runs. If the average for the first six matches is 42, then find the average for the last four matches.
= (10 × 38.9) - (6 × 42)
= 389 - 252 = 137
Average = = 34.25
Solution:
Total sum of last 4 matches, = (10 × 38.9) - (6 × 42)
= 389 - 252 = 137
Average = = 34.25