In shalu school her science teacher give test that are marked out of 100. Shalu has an average of 60 marks on her first four science test on 5 th test she got 80 marks.What is average of shalu marks in science after all 5 test
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Answer:
Average after 5 tests= 64 marks.
Step-by-step explanation:
Average of first four tests = 60
Total marks in first four tests =
No. of tests × Average Marks
Total marks in first four tests = 60×4=240.
Total marks of her after 5th test =240+80=320.
Average = Total Marks / Total No. of Tests.
Average after 5 tests = 320/5=64.
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