Ali took five Math tests during the semester and the mean of his test score was 85. If his mean after the first three was 83, Wh
at was the mean of his 4th and 5th tests
1 answer:
Answer:
88
Step-by-step explanation:
Mean of five test = 85
Sum of five tests = 85*5 = 425
Mean of first three test =83
Sum of first three test = 83 * 3 = 249
Sum of 4th and 5th test scores = 425 - 249
= 176
Mean of his 4th and 5th test = 176/2 = 88
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Answer:
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Step-by-step explanation:
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