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A student's four test scores were 88, 91, 93 and 86. What score would be needed on a fifth test to obtain a mean of 90 for all five test? A. 90 B. 92 C. 95 D. 96
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A student's four test scores were 88, 91, 93 and 86. What score would be needed on a fifth test to obtain a mean of 90 for all five test?

A. 90
B. 92
C. 95
D. 96

User Julien Reszka
by
3.1k points

1 Answer

4 votes

Answer:

92

Explanation:

88 + 91 + 93 + 86 = 358

90*5 = 450

therefore the fifth test has to be 450 - 358 = 92

User Kolin
by
4.1k points
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