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Q. Write a program to find the average of marks scored in the given subjects. (Physics=75,Chemistry=68, Biology, 85, Maths=78, Computer=80) |
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Answer» nt's average (arithmetic mean) test score on 4 TESTS is 78. What must be the STUDENT's score on a 5th test for the student's average score on the 5 tests to be 80?(A) 80(B) 82(C) 84(D) 86(E) 88Since the student's average test score on 4 tests is 78, then the sum of the first 4 test SCORES is 4*78=312. We need the sum of ALL 5 scores to be 5*80=400, so if  is the 5th test score, answer =88 |
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