Question

On the first exam your score was a 97%, on the second it was an 90%, and on the third test it was an 74%. The first exam is worth 7% of your grade, the second is worth 14% of your grade and the third is worth 29% of your grade. What is your average in the class so far? (please round your answer to 1 decimal place)

Answer 1

Let us assume the test was of 100 marks. Then you secured 97, 90 and 74 in first, second and third test respectively.

First test is considered to be 7% thus out of 97, 7% will go to final grade similarly in the case of 2nd and third test.

Final = 0.07×97 + 0.14 × 90 + 0.29 × 74 = 40.85

Thus out of 50% you secure 40.9

Thus your average in the class so far = 40.9

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