In a series of tests, A appeared for 8 tests and each test was marked out of 30 and averages 25. however, while checking his files, A could only find 7 of the 8 tests. For this he scored 29, 26, 18,20 , 27,24 and 29. determine how many marks he scored for the eighth test.
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Answer:
27
Step-by-step explanation:
Find the total score of the 8 tests:
Average = 25
Total = 25 x 8 = 200
Find the total score for the 7 tests:
Total = 29 + 26 + 18 + 20 + 27 + 24 + 29 = 173
Find the score for the 8th test:
8th test = 200 - 173 = 27
Answer: He scored 27 marks for the 8th test.
Answer:
Step-by-step explanation:
27
Step-by-step explanation:
Find the total score of the 8 tests:
Average = 25
Total = 25 x 8 = 200
Find the total score for the 7 tests:
Total = 29 + 26 + 18 + 20 + 27 + 24 + 29 = 173
Find the score for the 8th test:
8th test = 200 - 173 = 27